## Keep if strpos stata

STATA is avail-able on the PCs in the computer lab as well as on the Unix system. For more information on Statalist, see the FAQ. st: dropping digits from variables in Stata 10. Since all we really care about is Two-way ANOVA in Stata Introduction. The inbuilt strpos() will yield a positive value if a string is found inside another. I really don't find any usefull guide in the net and the Stata Help file is very unclear to me. How to import a table from a pdf into excel and Stata a) Convert the pdf into MS word using an online application such as: convert. clearing the data and saving old column names as a new variable called Stata: Do-files and Log-files Many researchers will keep a do-file recording data management (addressing missing data, reverse-scoring if necessary, etc) and may line 3 will drop all of the data you have in Stata. io/StataTraining Disclaimer: we are not affiliated with Stata. Scott Long has a great book, The Workflow of Data Analysis Using Stata, which I strongly recommend. However, it should return the same thing, 0, if the character searched for is the first in the string, as the index of that character is 0. longform contains a format for outputting observation numbers to Stata commands. The first Stata SE dataset (You can also select SPSS 12. Hi Jason! That helped a ton! Thank you very much! It looks like the last issue I have is that even if there are less than three pages of articles, the pagination shows all five page links (even if there are only, say, 2 pages of articles). Let’s use the auto data file. In our case, Stata has created reclan1860, reclan1870, recprp1860 and recprp1870. I keep if problematic_education == 0 // This will keep observations with problematic_education == 0 and drop the rest (the problematic ones, as defined previously in the program) Notice that the if here acts the same way as in the gen and replace commands: it tells Stata which observations are relevant to the command. Joseph Newton Department of Statistics Texas A&M University A good tactic is to keep the original names in one variable, exactly as stata. key files so that users who keep their Stata up to date are pointed to the latest version of any package published via the Stata Journal when they use search. Thinking of your data like a spreadsheet, the keep if and drop if commands can be used to eliminate rows of your data. If I may, I'd like to add an example for a bit more clarification on the action of substr(). com) Tim Essam (tessam@usaid. For example:display strposStataa Use strpos to check whether a politician has a doctoral from ECON 424 at University of Maryland. You can use Stata’s estimates command, however, to temporarily store estimation results for displaying, comparing, cross-model testing, etc. ac. Building on that . au Introduction KEEP IF COMMAND WITH MISSING VALUES • To verify that Stata dropped cases with missing ch, we can run the following command: browse if ch==. Thanks! If data is not in Stata format, then can use insheet for tab-delimited files or infile or infix for • strpos • subinstr • median bt •min • mode number_format() was changed to not I ran across an issue where I wanted to keep the entered precision of a real value, without arbitrarily rounding off what the Data Processing with Stata 14. August 18, 2015 18 August, 2015. Building on that gen breakfast = strpos(meal, "bacon") Examples are runiform(), ln(42), strpos("Stata", "S"). dta) in the dataset section. export delimited "myData. Tim Essam (tessam@usaid. This tutorial is constructed to follow this sequence: data assembly and construction of additional variables. 11. Not sure why, but I trust you, Google. I am trying to use Stata because that’s what I have access to & what my adviser knows to some degree. To this end we will use the official values of a and b, which I saved in a text file called LeeCarterAB. Thanks for the listings stata language definition! Just FYI, to use the \lstset example settings at the end, \setmonofont requires the fontspec package, which in turns requires running XeTeX or LuaTeX. so convenient. Look for issues along those lines. Join Date: Mar 2014; Posts: 2020 #6. generate byte q1_HIV = strpos(q1text, "HIV") >0 | strpos(q1text, "HCV") >0. Hello together, check the help files for the functions he uses (e. STATA generates a 16-digit values over the interval [0, 1) for each case in the data. For example, if your program {it: helloWorld}, your repository should be called {it:stata-hello-world}. gov) • Laura Hughes (lhughes@usaid. , during the same session. You can also save estimation results to disk, but that will be the subject of the next section. Aug 23, 2012 · Coding of String Variable in STATA Imran Sunesara. keep if _n==1. Stata has separate commands for each of the three types of actions regular expressions can perform: regexm – used to find matching strings, evaluates to one if there is a match, and zero otherwiseIn Stata, I needed to search some string values. There are functions you know The Lee-Carter Model. If the feeling is that exact position of substring is If there is no such occurrence, the result is 0. In running and presenting multiple analyses for the same manuscript one situation that I often run into is that I want to keep the same "n" (sample size) across all of my models. input() can be used like Stata's date():Cleaning data in STATA Always keep a log. Problems with drop/keep string variable 08 May 2014, 13:36 means Stata did not recognize the variable name - are you sure you typed it correctly (e. Description Stata/IC is a general-purpose statistical package with good graphics capabilities and a graphic editor. For a one-to-many or many-to-one match merge, use . If the first character in s is a numeric character and p is not 0, then the result is prefixed with an underscore. You'll most likely come across a programming problem that requires you to find some data in a string. g. I got hired by my dean to make the school website, and that is how I've learned HTML, CSS and Joomla. mfm. Moreover, as bug fixes and new features are issued frequently by StataCorp, make sure that you update your Stata before Jun 04, 2015 · How to find particular word in string in stata 04 Jun 2015, 11:20. in /home/tork/public_html/modules/glossary/glossary/glossary. Dear Statalisters, I am experiencing some problems with a command I use to extract a part of a string variable which I use to create another string variable. For a list of topics covered by this series, see the Introduction. – This document briefly summarizes Stata commands useful in ECON-4570 Econometrics …“beyond the Stata manual” in explaining key features or uses of Stata that are of interest to intermediate or advanced users of Stata; 3) papers that discuss new commands or Stata programs of interest either to a wide spectrum of users (e. pdf - Download as PDF File (. One nice feature is that once you have reshaped the data, Stata keeps track of your i and j variables. Some of the original files are HTML files One of my favorite memories was discussing Stata's untapped market of Stata themed bed linens & pillow-cases with Nick Cox and my coworkers. xls, sheet ( ^sheet_name) • Also keep in mind that, stata is case sensitive. The file contains 61 page(s) and is free to view, download or print. keep make rep78 foreign mpg price . 12. Buscar Buscar. The keep if and drop if commands can be used to keep and drop observations. Keep it coming . professor we want to extract anything that comes after the period (. Starting a log is just a matter of adding a command at the top of your do-file that tells Stata to log, as well as where you want the log to be saved: keep make price opposite of drop; keep only variables 'make' and 'price' Data Transformation with Stata 15 Cheat Sheet For more info see Stata’s reference manual (stata. Your posts along with Statalist are very helpful. or log in with. Using Big Datasets in Stata we are specifying which variables to keep and which to delete. txt) or view presentation slides online. I know that I can do this using something like the following but for_n and _N are Stata system variables—they exist whether you like them or not. Notepad++ syntax highlighting file for Stata code contract addtable reshape erase save drop keep inputst strmatch( strofreal( strpos( strproper( strreverse Stata cheatsheet transformation 1. uk Consider the following problem, based on a real one reported on Statalist. Stata user graph examples Comprehensive collection of graph commands available in Stata, with example graphs. [ Date Prev ][ Date Next ][ Thread Prev ][ Thread Next ][ Date Index ][ Thread Index ] st: How to check whether a string variable contains some characters From: Bersant Hobdari <bhobdari@gmail. The C++ teacher I mentioned was only temporary (3-4 months), but that helped me get started. j. . Think if you like of an open mouth expecting to be fed. String Functions (Transact-SQL) 08/15/2016; 2 minutes to read Contributors. $10. As a VBA function, you can use this function in macro code that is entered through the Microsoft Visual Basic Editor. gives the error type mismatch. strpos("frog","a") is 0, as "a" never occurs within "frog". " The code then selects cases with dates AFTER 12 June 2013. ggplot2: Elegant Graphics for Data Analysis by WICKHAM, H. strpos(s,b) returns the position of the first occurrence of the character or set of characters b in s . exe. This allows you to easily convert the data back and forth With Stata, value labels may only be applied to numeric variables up to data type 'long'. If you specify the options update replace ( replace can't be specified without update), Stata will take, instead, the values that are in the Using Data and put them in place of the Master Data values. This log is best read in conjunction with the class handout. Stata will automatically assign the The approach is to find specified separators by using the strpos() Abbreviations KEEP Kidney Early Evaluation Program Click the + Expand button below each graph to explore the corresponding code/script for each. If you just (1) segregate the observations with missing values, then immediately (2) identifying the last so many observations with non-missing values follows from sorting within the other observations, those Using the function strpos() and substr() in Stata to do trimming whatever you like. keep() differs from assert() because it selects observations from the merged dataset rather than enforcing requirements. csv) export excel "myData. Introduction About Teaching Data Blog I'm not sure if they'd keep a copy of it on their end (would they delete my historical data permanently?) Being the data fan that I am, I opt for both parties having the location data. I wish to find the position of a quotation mark in a item but Stata keeps returning the message "too few quotes" localTip # 1 : Extract all text from a macro after a specific letter Say that we have the following macro local sp stata. 接上篇： 详解stata爬虫抓取网页上的数据 part 1 本文do-file及相关文件 链接 因此仅对使用的部分命令与函数进行解释，见do-file中相关注释【strpos、duplicates drop】。 每份公报的书写格式不统一造成的，需要继续进行处理，方法同上面一样，split，replace and keep Create multiple dummy (indicator) variables in Stata For example, the variable region (where 1 indicates Southeast Asia, 2 indicates Eastern Europe, etc. replace var1 = “fabio rojas” if strpos(var1, “fabio”)>0 you do want to use regular expressions but keep in mind Random numbers in STATA . The functions mod() and round() are also covered at the end for your reference. Examples are runiform(), ln(42), strpos("Stata", "S"). A PHP file normally contains HTML tags, and some PHP scripting code. Grz, Kris. Note that strpos() and all of Stata 13’s string functions work with long strings and with binary strings. From down under. You can browse but not post. gov) inspired by RStudio’s awesome Cheat Sheets (rstudio. The variables may contain numeric values, but if they are defined as type string, there are very few things you can do to analyze the data. drop / keep . Stata is a registered What command can I use to select variables containing specific pattern in STATA? through dplyr package but I don't seem to find anything in STATA. {p_end} 2. (CVE-2016-10166) Fixed bug #77270 (imagecolormatch Out Of Bounds Write on Heap). I wish to find the position of a quotation mark in a item but Stata keeps returning the message "too few quotes" localJul 02, 2013 · The example Stata code below assumes your existing string variable for the date is named "olddate" and creates a %td formatted date variable named "date. I mapped my Google location points that were within the contiguous United States using Stata below. Here are some exam(+1) The caret inside the brackets represents negation, which is not a feature that is documented in the Stata REGEX FAQ or even the manuals. But if you use xi to create these, # won't appear in their names. Local Note: At OPR you can access Stata/SE on Windows by running the network version on your own workstation, just create a shortcut to \\opr\shares\applications\stata15-se\stataSE. De Hoyos* University of Cambridge 17 de febrero de 2005 1. Stata: Data Analysis and Statistical Software Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist. The primary purpose of a two-way ANOVA is to understand if there is an interaction between the two independent variables on the dependent variable. We'll walk through how to do this using an NBA dashboard I built out for fun (using a CSV from early in the season - keep in mind it's not updated) Let's go through what it looks like! Here's the dashboard, completely unfiltered (note the values which appear on the charts so you can compare to below screenshots) The reason is that strpos . There are functions you know Using : keep if strpos(affiliatie, "Erasmus" | "Antwerpen" | "Maastricht" etc etc (29 in total). display strposStataa Use strpos to check whether a politician has a doctoral from ECON 424 at University of Maryland. This presentation shows the benefits to the user of Stata software jointly with In Stata, I needed to search some string values. I take a different approach, which is keep all of a project’s code in one honking large do file, which is divided into sections. How To / STATA: Calculate Variables for Groups of Observations Leave a reply In management research, we usually need to create a variable that measures the experience of firms. Stata user graph examples, part II Another bunch of Stata graphs from the Aussies. This idea came up after asking Gretchen if they sold the Stata tablecloth (pictured below) in the Stata gift shop. 46S1 S158 2005 suppl 3 22 National Kidney Foundation KEEP Kidney Early Champlain College MEDICAL TE 101 - Winter 2012 We can use the strpos (Stata) or char. list name entryage begin party in 1/5 11/1/15 ECON424 Fall 2015 Q7 3 points Issue the Stata command that reproduces all the numbers in Table 2keep make price opposite of drop; keep only variables 'make' and 'price' Data Transformation with Stata 14. Introducci¶on keep Seguido por una lista de variables mantiene las variables especiﬂcadas eliminando las no incluidas en la lista. Here are some examExtracting parts of string variable Dear Statalisters, I am experiencing some problems with a command I use to extract a part of a string variable which I use to create another string variable. csv", delimiter(",") replace export data as a comma-delimited file (. gov) follow us @StataRGIS and @flaneuseksStata metadata mining with substring searches. Jul 02, 2015 · I've made some attempts by combining substr and strpos, but results are not satisfactory so far. An¶alogamente el comando dropTip # 1 : Extract all text from a macro after a specific letter Say that we have the following macro local sp stata. The () syntax is generic. [ Date Prev ][ Date Next …Stata: Data Analysis and Statistical Software Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist. line 4 loads an example automotive dataset included with Stata. (using Stata’s perfectly nice –strpos It’s then up to you to -list- or -keep- or -sort- or whatever you How can I convert string variables to numeric variables in Stata? | Stata FAQ Stata FAQ: How can I convert string variables to numeric variables in Stata? The easiest way to convert string variables to numeric form is to use the encode command. Keyword CPC PCC Volume Score; Search Results related to strpos in stata on Search Engine. Most optimized way to get minimum strpos from multiple needles. pdf However, if you are new to Stata, and you have a project to do, there is a sequence of actions you probably need to do. list name Stata - Generate a dummy variable if any string variable of a list begins with specific characters (I will keep it to dx1 through dx5 because Stata does not strpos() indexw() returns the first position of the first character of a word in a character string. How to import a table from a pdf into excel and Stata a) Convert the pdf into MS word using an online application such as: convert. com. keep(varlist)—the default is that all of the variables in the appended datasets are kept. strpos]: Empty delimiter. Your cheat sheet gave me entry into graph types that I had never used but are exactly what I needed. txt) or read online. …Google Location Stata JSON parsing. Mar 29, 2017 · generate byte keep = 0 foreach affiliate in Erasmus Antwerpen Maastricht <etc. a. drop if strpos(lower(indicator), "indicator") | strpos(lower(indicator), If the first argument is a string, then all the remaining arguments must be string also. We apply the Lee-Carter approach to forecasting U. (using Stata’s perfectly nice –strpos()-). strpos() is a function, strictly; in Stata functions and commands are disjoint, Functions: inlist() Posted on 20 October Learning a little bit more about Stata’s built-in functions can be very convenient (sometimes necessary)—shorter codes, faster processing, more facebook time. Stata reads that as an extended macro function. Login or Register by clicking 'Login or Register' at the top-right of this page. gen pos2 = strpos(cit_1, "_") . These are the top rated real world PHP examples of strpos_array extracted from open source projects. Keeping a Consistent n Across Multiple Models. It’s then up to you to -list- or -keep- or -sort- or whatever you’d like to do to isolate and examine the variables whose labels match. lcquote contains left compound quote. keep() is used to pare the merged dataset to a given set of observations it is Stata syntax for observation number. I parsed the JSON file using Stata and kept one latitude and longitude set per timestamp, leaving me with 765,250 rows of data. Being able to manipulate strings is a valuable skill, especially in PHP. ”Ntokozo over 3 years ago . Contribute to cmaene/Stata development by creating an account on GitHub. Now, I would like to keep the data of only about 35 countries. org . strpos() is a function, strictly; in Stata functions and commands are disjoint, Stata: Data Analysis and Statistical Software Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist. For this module, we will focus on the variables make, rep78, foreign, mpg, and price. So you don't need regular expressions here: . The major defect is that it won't ignore interactions that you want to keep in the model. (To select dates beginning with and including 12 June 2013, you could use if date > td("11jun2013") . If you wanted that to happen, Sep 16, 2012 16 September 2012, 16:05 > Subject: Re: st: indicator for "if cell contains the word or phrase" > > . Login or Register by clicking 'Login or Register' at the top-right of this page. This presentation shows the benefits to the user of Stata software jointly with Using IF with Stata commands | Stata Learning Modules. a line plot)Beloved, never avenge yourselves, but leave it to the wrath of God, for it is written, “Vengeance is mine, I will repay, says the Lord. I couldn’t use regular expressions because the strings I’m working with happen to contain regexp control characters. by Jeff Meyer. Stata calls these "missing values". Note: The strpos() function is case-sensitive. Each character in s that is not allowed in a Stata name is converted to an underscore character,. In my last article, Stata interprets dummy variables as 0 = false, 1 = true. The Stata Journal Editor H. [ Date Prev ][ Date Next ][ Thread Prev ][ Thread Next ][ Date Index ][ Thread Index ] generate byte keep = 0 foreach affiliate in Erasmus Antwerpen Maastricht <etc. list name entryage begin party in 1/5 11/1/15 ECON424 Fall 2015 Q7 3 points Issue the Stata command that reproduces all the numbers in Table 2The easiest way to convert string variables to numeric form is to use the encode command. September 10, 2013 15 September, Produces a set of do-files to convert the delimited data files into Stata-format files, 4 thoughts on “ Turning the World Fertility Surveys’ raw data into a set of Stata dta files ” …How to import a table from a pdf into excel and Stata a) Convert the pdf into MS word using an online application such as: convert. As strpos may return either FALSE (substring absent) or 0 (substring at start of string), strict versus loose equivalency operators must be used very carefully. Simons – This document is updated continually. This allows you to easily convert the data back and forth Stata cheat sheet: data transformation 1. 000. We can use the keep command to keep just these five variables. If the country name in the data differs from the country name in the command, stata will not run the command. > { quietly replace keep = 1 if strpos strpos() - Stata stata. Also as mentioned above, the strpos function will return with the position of the first match, not every match in the string. is false (0 How many of these Stata commands have you used? An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. [ Date Prev ][ Date Next ][ Thread Prev ][ Thread Next ][ Date Index ][ Thread Index ] What command can I use to select variables containing specific pattern in STATA? through dplyr package but I don't seem to find anything in STATA. An associative array containing references to all variables which are currently defined in the global scope of the script. I at times get frustrated too and having to change browsers every now and then adds to that frustration. Is this bad? Warning: strpos() expects parameter 1 to be string, array given in /forum. When you execute the command In Stata, how do I get aggregate statistics and save them into a data set? Stata Basic Commands - Download as PDF File (. Does anyone know how Apr 28, 2010 clear* input str7 myvar "venus" "mercury" "Jupiter" "mars" "saturn" "uranus" "Neptune" end list, noo drop if strpos(myvar , "ur")!=0 list, noo Apr 28, 2010 Suppose you capitalised the planet names consistently. com import haver — Import data from Haver Analytics databases Syntax Options for import haver Remarks and examples Also see We need to keep only the observations from our dataset where the frequency variable equals “Monthly” and where the description variable contains “Yield”. All of the other variables, the ones that do not vary over time, retain their original variable names. I am trying to create dummy variables in Stata that are 1 if any of the variables dx1 through dx25 start with a specific string. sysuse auto . merge 1:m or . command varlist qualifiers, options. replace webuse ind2. 10. files b) Often when converting a table, multiple lines in the same cells are separated by line-breaks (indicated by ¶) which means that when copied into excel they will appear as multiple rows. For example:I'm cleaning a variable - last_name - that for some names the middle name is included after a comma, while for most names the middle name is stored in the variable middle_name. A user We will keep …replacing previous observations according to current observation, foreach? replace?. 318–320 Stata tip 98: Counting substrings within strings Nicholas J. Keep Your Credentials Current! With members and customers in over 130 countries, ASQ brings together the people, ideas and tools that make our world work better. keep if country[_n]~=country[_n-1] or simply . Nick [hidden email] Charlotte Picard I am using Stata 11 IC, (64 bit Windows) I tried copying and pasting the code from the website and still got the same issue. What is a string? A string is a set of letters or characters (e. keep only variables 'make' and 'price' FILTER SPECIFIC ROWS drop if mpg < 20 drop in 1/4 drop observations based on a condition (left) or rows 1-4 (right) keep in 1/30 opposite of drop. Keep in mind that Python indexes are zero-based and the function will return -1 if it fails to find the substring. How can I tell Stata to drop any observation where the manifestation of the Indicator variable includes something like Stata: code binary variable conditional on key words in string variable. Stata Programming Techniques for Panel Data. ")+1,. Contribute to worldbank/stata development by creating an account on GitHub. a word or set of words). keep if frequency=="Monthly" & strpos There may be times that you receive a file that has many (or all) of the variables defined as strings, that is, character variables. Log in. How can I keep my gold safe from other PCs? Why does a single AND gate need 60 transistors? Protagonist constantly has to have long words explained to her. Using echo, the strpos function will return: 8 An important note to keep in mind is that when using the strpos function, the number will always begin with 0 and not 1. These values extend the two sets of parameters to age 105+, but are otherwise practically identical to the estimates we just obtained. gov) follow us @StataRGIS and @flaneuseksThere are many different approaches to writing and documenting the many steps that go into an empirical project. In [29]: tips Stata tip 98: Counting substrings within strings Nicholas J. merge m:1 ; see Merge two data sets in the many-to-one relationship in Stata. O Scribd é o maior site social de leitura e publicação do mundo. Multiple regression (an extension of simple linear regression) is used to predict the value of a dependent variable (also known as an outcome variable) based on the value of two or more independent variables (also known as predictor variables). , strpos (he has a typo in his code) and substr) Comment. Masterov …How to extract few letters of a string variable in stata? I want to keep variables containing "npb" . Any ideaskindly assist. strpos(s,b) returns the position Tuesday? To do this, we need to translate our date variable d into something Stata can interpret as date. A string variable will have words as its official 'values', whereas a numeric variable will always have numbers (although fyi strings can also include numbers). allows you to keep variables according to Functions: inlist() Posted on 20 October 2011 by Mitch Abdon Also, saw it as Cox’s Stata tip #39. sort entryage. It is a rough and ready utility: use circumspectly. It can be used as a VBA function (VBA) in Excel. If the feeling is that exact position of substring is I tried to use the operator & ( keep if isocode =" "AUT" & "AUS" &) but it . To merge two data sets in Stata, first sort each data set on the key variables upon which the merging will be based. Stata for Mac’s graphical user interface (GUI) has been completely rewritten in Apple’s Cocoa programming interface. The Stata Journal is published quarterly by the Stata Press, College Station, Texas, USA. Thanks!Relation to data • Points: polling margins versus dates, essentially a scatter plot • Lines: • Grid lines, some emphasized • Trailing margin is polling averages versus dates, connected (a. Stata will sort the data in ascending order by default. Mar 4, 2014 The inbuilt strpos() will yield a positive value if a string is found inside another. If you don’t want all of the variables, the keep option will let you choose which variables you want to keep. STATA tip: restore/preserve value labels after using the collapse command (and a link to doing so for the reshape command) (assuming you keep all the Keep seeing this at the top of the forum. list id gender race schtyp read science 1. Then if strpos(myvar, "ur") > 0 would not catch "Uranus". Description. You absolutely must have a look at the online help for the command you need to figure out (whelp command), and you should consult the manual for a more extensive understanding of how a given command works, as only very basic usage is given here. st: comparing dates: keep if dates<d(DDMMYYYY). Stata module to produce bar graphs with standard error bars and cross-group comparisons - bbdaniels/betterbarI noticed that false is valued as 0 in PHP, and the strpos() function returns false if the character is not in the string. Jan 09, 2014 · Stata reads that as an extended macro function. Your code errors because you are asking Stata to drop a variable (a column) if some observations (rows Within a graphics command, control over annotation lies mainly in options. ), we can use the following code: loc var =substr("`sp'",strpos("`sp'",". , in data management or graphics) or to some large segment of Stata …Stata metadata mining with substring searches. For the latest version, open it from the course disk space. stata. A sequential merge performs a one-to-one merge on observation number. Belen Chavez. 11 String display formats The format for svyplot -- a wrapper for catplot (Stata). com> Prev by Date: Re: st: How to check whether a string variable contains some characters Stata: code binary variable conditional on key words in string variable. Its okay Duncan. gov) follow us @StataRGIS and @flaneuseksDownloadable! sxpose transposes a dataset of string variables, so that observations become variables, and vice versa. This is why the result is 8 and not 9. )Your & might actually be & so the strpos isn't going to match. input() can be used like Stata's date(): Stata for Researchers: Usage and Syntax This is part two of the Stata for Researchers series. Because of this, the numeric combination variable can only be created from source variables that have up Log files and do files are an invaluable way to keep track of your work in Stata, ensure that you can reproduce your results, and save yourself a tremendous amount of time by not having to reissue the same commands over and over again. gen v`x' = " `item' " if strpos(v1 It will also keep variables whose names contain Of course, that depends on the notes *. Eric Booth's /Research_Notes Notes on social science research, Stata, and OSX programming Blogs about Stata Links to Stata blogs in Stata’s website Sofware Carpentry Helping scientists make better software since 1997 Here are some thoughts: In most lines you can extract the text between the first blank and the first occurance of _. They are particularly useful when using _n and _N Using _n Simple Usage _n is a system variable. 4. input() creates numeric data from character data. Stata Cheat Sheets - Download as PDF File (. csv", delimiter(",") replace export data as a comma-delimited file (. You may find it helpful to experiment with them just to move more rapidly down the learning curve. I keep gettign this error: warning: strpos() [function. If you open up Stata without loading any data you don't need to do this. findw() is similar. [ Date Prev ][ Date Next …Feb 01, 2018 · I have a Dataset with 150 countries. J. keep if _n==1 /* keeps the first observation for each householdid */ Big brother _N, on the other hand, may be used to generate a variable that contains the number of observations by group: bysort One is to use the strpos() and the substr() string functions. dta", replace saveold "myData. gen pos1 = strpos(cit_1, " ") . I wish to find the position of a quotation mark in a item but Stata keeps returning the message "too few quotes" localEven so, because the variable is defined as str2, Stata cannot perform any kind of numerical analysis of the variable science. [Page 2] Stop looping when reaching a certain observation. I take a different approach, which is keep all of a project’s code in A collection of my notable Stata do files. In the below example, we look for the last use of the letter "P" in the calendar (i. gov) • Laura Hughes (lhughes@usaid. A ado command, 34 arithmetic operators, seeoperators, arithmetic automatic update checking, seeupdates, automatic update checking B batch mode, 128–129 blog, seeStata blog A repository for Stata modules that I develop. com string — String manipulation functions ContentsDescriptionRemarks and examplesAlso see Contents [M-5] Manual entry Function Purpose Parsing tokens() tokens() obtain tokens (words) from string invtokens() invtokens() concatenate string vector into string scalar strmatch() strmatch() pattern matching tokenget()::: advanced I keep getting this error message with my code can someone spot what i have done wrong. APPLIES TO: SQL Server (starting with 2008) Azure SQL Database Azure SQL Data Warehouse Parallel Data Warehouse The INSTR function is a built-in function in Excel that is categorized as a String/Text Function. Readbag users suggest that Introduction to Stata is worth reading. cox@durham. We additionally have objects like bars, box-and-whisker symbols, and pies that are fundamental in the sense that they are specified by a simple key word. Dear Stata users, I am struggling to find a way how to keep observations within a date range for different regions. See help on limits. The variable names are the keys of the array. I have data like 4 thoughts on “ Turning the World Fertility Surveys’ raw data into a set of Stata dta files ” Using the Same Sample for Different Models in Stata. Address changes should be sent to the Stata Journal , StataCorp, 4905 Lakeway Drive, College Station, TX 77845, USA, or emailed to sj@stata. Panel data, where subjects are observed repeatedly over time, is a very common data structure in the social sciences. com import haver — Import data from Haver Analytics databases Syntax Options for import haver Remarks and examples Also see keep only the observations 接上篇： 详解stata爬虫抓取网页上的数据 见do-file中相关注释【strpos、duplicates drop】。 方法同上面一样，split，replace and Contribute to worldbank/stata development by creating an account on GitHub. Stata keeps only the results of the most recently fit model in active memory. com I'd agree with Martin that -strpos()- offers the simplest solution here. The above showed how to use keep and drop variables to eliminate variables from your data file. A great advantage of your original method is that it can handle interactions of any complexity. injectCss(outfile) } } } fclose(infile) fclose(outfile) } string vector translateLog(string scalar filename, string scalar format, real scalar plain Download Presentation How many of these Stata commands have you used? - PowerPoint PPT Presentation Like TextWrangler and Stata January 03, 2011 With the introduction of syntax highlighting and the ability to handle larger do-files, I've started to use the built-in Stata do-file editor more and more in lieu of BBS's TextWrangler . as length means "keep right on to the end of the string". The earliest observation is from December of 2010! That's almost 5 years worth of data. keep make price opposite of drop; keep only variables 'make' and 'price' Data Transformation with Stata 15 Cheat Sheet For more info see Stata’s reference manual (stata. Through-out, bold type will refer to STATA commands, while –le names, variables names, etc. David's example allows you to keep variables according to the variable names, Hi Rajan, check out the Stata manual section on 'List variables matching name . " Think of it as where you "are One is to use the strpos() and the substr() string functions. To keep only the first occurrence of each country we can use: . Let’s illustrate this with the auto data. I have a set of Excel files that I convert to Stata format with Stat/Transfer, called from Stata with -stcmd- by Roger Newson. You can actually keep more than one graph in memory if you use the name() option to name the graph when you create it. PHP 5 ChangeLog Version 5. STATA uses a pseudo-random number function uniform() to generate random numbers. ) display "`var'" Tip #2: Extract specific text from a …Stata Commands for Data Management and Analysis. (If you have no missing data, just inc will do because to Stata 1 is true and 0 is false—just keep in mind that any other value, including missing, is also treated as true. php". , * but to keep things easy I stopped at what the specified I keep gettign this error: warning: strpos() [function. Note: This function is binary-safe. These are functions that build in much of the programming functions for Stata. st: how to refer to a quotation mark in functions. Mar 29, 2017 · generate byte keep = 0 foreach affiliate in Erasmus Antwerpen Maastricht <etc. 0 for How does one treat too many missing values using Stata? I have attached the Stata output for the missing data summary. Also, saw it as Cox’s Stata tip #39. I If you specify none of them, Stata will keep the values that were in the Master Data (in memory). 1 Cheat Sheet For more info see Stata’s reference manual (stata. keep if country~=country[_n-1] Stata starts at observation number one and applies the command, then moves onto observation two and applies the command again, then onto three and so on. When does a vector component keep being a vector, exactly? Euler characteristic of this polyhedron? Faceting can be a powerful tool to facilitate the comparison of patterns within subsets of ones data. There is no need for, although no harm in, regexp Stata tip: collapse dataset while preserving variable and value labels When I use the collapse command, I loose the variable and value labels associated with my variables. If you type in: . Post Cancel. You cannot get means, you The Stata Journal (2011) 11, Number 2, pp. Elasticity and Forecasting for Cyclical Data. byvars is the list of by variables. gen stuff_present = strpos(strvar, "stuff") > 0 Mar 17, 2011 -strpos()- returns the position of a substring and is non-zero when it occurs and zero otherwise. org . Subscripting (Creating group identifier; First/last cases within a group; Checking if values are consistent within a group; Checking if t test pairs exist within a group; Lags and leads)Stata Basic Syntax Structure . files b) Often when converting a table, multiple lines in the same cells are separated by line-breaks (indicated by ¶) which means that …st: how to refer to a quotation mark in functions. Masterov Jul 30 …How to extract few letters of a string variable in stata? I want to keep variables containing "npb" . . Currently I am looping throughNov 06, 2011 · This article is all about using _n and _N in Stata. With a force option, datasets containing numeric variables may also be transposed. strpos works fine, so the longer you keep blaming strpos the longer it will take you to find your bug. There's a note saying "If string is equal to start characters long, an empty string will be returned. > { quietly replace keep = 1 if strpos(affiliatie, "`affiliate'") > 0 } quietly keep if May 24, 2015 · Forums for Discussing Stata; General; You are not logged in. ) display "`var'" Tip #2: Extract specific text from a …RE: replacing previous observations according to current observation, foreach? replace? The continuation bracket /// can not be used interactively, only from a do-file or program. generate randnum = uniform(). strpos() indexw() returns the first position of the first character of a word in a character string. Then, use the . will be in normal type. As the list of data files and my list of search terms grew, I found I needed something a little more extensible, and more general, than my ad hoc scripts. ![opendataexport demo] gen v`x' = " `item' " if strpos(v1, " `item' ")} // End variable loop * Collapse to one column to get every st: -merge- in version11 fails to sort automatically. {p_end} 2. I'm using Chrome oddly enough, but it works. For example, in the previous example the variable “foreign” is already sorted within our data set. Manic depressive state { replace depress = depress & !strpos(readcode, "`code'") } *** If depress is false (0), it stays false. gov) inspired by RStudio’s awesome Cheat Sheets (rstudio. Dear All, I am rather new to Stata so I apologize in advance if these are rather silly questions, but I googled around extensively and searched StataThe Stata Journal publishes reviewed papers together with shorter notes or comments, regular columns, book reviews, and other material of interest to Stata users. keep if strpos stata I take a different approach, which is keep all of a project's code in one honking large do file, which is divided into sections. He recommends developing a series of small, highly focused do files, which are run in sequence as needed. Turning the World Fertility Surveys’ raw data into a set of Stata dta files. nearest to the date of interview). Some variables may or may not exist in a certain dta. I use Stata/MP Version 11. Loading Unsubscribe from Imran Sunesara? Introductory STATA workshop - Duration: 1:19:10. Stata for Mac manual. To know that a substring is absent, you must use: === FALSE To know that a substring is present (in any position including 0), you can use either of:Basics of STATA This handout is intended as an introduction to STATA. 6. xyz files being either ASCII or ASCII-like enough so that the T1DM would show up as “T1DM”. keep all in the left table 9. Reduce the dataset to the bare minimum number of variables and avoid Stata IC. – Dimitriy V. keep only variables 'make' and 'price' FILTER SPECIFIC AllCheatSheets. References. Dec 08, 2006 · Hi, the String class has many usefull methods available like the ones you need: SubString, IndexOf and LastIndexOf. Stata will automatically assign the The approach is to find specified separators by using the strpos() Abbreviations KEEP Kidney Early Evaluation Program If your data is already in Stata, why not use the –strpos– function? Foe example: gen exists=strpos(abstract,”thestringyouwant”) will give you a variable with the starting location of the string in the abstract; 0 if the string is not present. files b) Often when converting a table, multiple lines in the same cells are separated by line-breaks (indicated by ¶) which means that …In “Getting Correspondence from messy surveys” I took a stab at finding variables that are likely what I’m looking for. Hello, everyone! This is my first post on the forum. (v`i', 1, strpos str variables cannot contain binary strL variables can compress knows this If from STATS 130 at University of California, Los Angeles Str variables cannot contain binary strl variables Note that strpos() and all of Stata 13’s string functions work with long strings and with binary strings. Hello everyone, This is a question about the –merge- command in Stata version11. Use the snake-case format for your repository name and prefix it with "stata". GitHub Gist: instantly share code, notes, and snippets. Leave a Reply Cancel reply. There is no equivalent Stata function, but regexm() can at least be used to test if the word exists in a string. savemany-to-one merge of "hh2. nolabel—If you use this option, you are telling Stata not to copy the value-label definitions Can I use an array in strpos() ? If this is your first visit, If you want to attract and keep more clients, then offer great customer support. list name keep make price opposite of drop; keep only variables 'make' and 'price' Data Transformation with Stata 14. GD: Fixed bug #77269 (efree() on uninitialized Heap data in imagescale leads to use-after-free). com Stata's collapse command computes aggregate statistics such as mean, sum, and standard deviation and saves them into a data set. command 1, 2, In Stata documentation and here, the following conventions are used to describe the proper syntax for each command: [brackets] not needed / optional element . dat (also a Stata file LeeCarterAB. It is also a datatype in Stata. If you're new to Stata we highly recommend reading the articles in order. The default file extension for PHP files is ". Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. command is the Stata command executed for each by group. allows you to keep variables according to Stata has separate commands for each of the three types of actions regular expressions can perform: regexm – used to find matching strings, evaluates to one if there is a match, and zero otherwise(+1) The caret inside the brackets represents negation, which is not a feature that is documented in the Stata REGEX FAQ or even the manuals. For example, you could use multiple regression to determine if exam anxiety can be predicted Keep and then order variables, eliminating the need to run -keep varlist- and then -order varlist- Advanced search Economic literature: papers , articles , software , chapters , books . keep if strpos stataApr 28, 2010 clear* input str7 myvar "venus" "mercury" "Jupiter" "mars" "saturn" "uranus" "Neptune" end list, noo drop if strpos(myvar , "ur")!=0 list, noo Apr 28, 2010 Suppose you capitalised the planet names consistently. dta", replace version(12) save data in Stata format, replacing the data if a file with same name exists. Again, this is a general rule of thumb on Stata. rcquote contains right compound quote. com) CC BY NC frequently used commands are highlighted in yellow display price[4] display the 4th observation in price; only works on single values levelsof rep78 display the unique values for rep78 Explore Data duplicates report finds all duplicate The line above finds the first space in the first name variable, returning its position in the string using the strpos command. Aug 15, 2012 You can reduce your problems considerably by insisting that if strpos(postcode, "NW1") == 1 if strpos(postcode, "W1") == 1 which is going If the first argument is a string, then all the remaining arguments must be string also. The command local tells Stata to keep everything in the command line in memory only until the program or do-file ends. but the forum software does not like this function name and keeps changing it on me - I hope it comes thru) to you. I wish to find the position of a quotation mark in a item but Stata keeps returning the message "too few quotes" localI noticed that false is valued as 0 in PHP, and the strpos() function returns false if the character is not in the string. Keyword CPC PCC Volume Score; Search Results related to strpos stata on Search Engine. Stata always keeps track of what it calls the "current working display strposStataa Use strpos to check whether a politician has a doctoral from ECON 424 at University of Maryland keep if _n==1. E. (2011). If you want to get involved, click one of these buttons! Title stata. Stata covers a wide range of statistical techniques and is programmable, allowing the user to add new commands. Its value is always the current observation being worked with. gov) follow us @StataRGIS and @flaneuseks Dropping various string variables in a loop in Stata. php. Stata allows you to use a single word, such as “continuous”, to represent many other words. Macros in Stata, Why and How to Use Them. 0 for Stata keeps track of the last graph you have drawn, which is stored in memory, and calls it “Graph”. Unfortunately I am learning on my own. One way to sort data is using a simple sort command followed by the variable name. Because of this, the numeric combination variable can only be created from source variables that have up The following series of Stata commands highlights a process for compiling a medical or a drug code list for use in identifying cases of unipolar depression for research using primary care databases. ("Belgium") without the ":lbcountry", Stata will think it is a string; so you must either use the numeric value that is equal to the label you want (you can get this with -label list-) or tell Stata it is a value label; so, Stata I have a list of variables that I need to keep and save temporary copies on the fly. File Manipulation Commands set mem xxm Allocates xx RAM for use by Stata…Counting observations between 2 values in stata? If you need to keep information in the in-between time periods I would suggest mucking around with stset, and generating the length using stgen Your & might actually be & so the strpos isn't going to match. I need Stata to keep all variables that exist in …Stata for Researchers: Usage and Syntax This is part two of the Stata for Researchers series. Reply. Like Like Data Processing with Stata 14. Keeping a log means you can go back and look at what you did without having to do it again. If so, you should use macval() to keep Stata from evaluating what Stata thinks to be a but you then have to implement Nick Cox's suggestion of escaping the dollar sign: if strpos("`macval(line Associate Center for Entrepreneurship and Innovation Duke University's Fuqua School of Business [hidden email] > Dear Stata Download Presentation How many of these Stata commands have you used? An Image/Link below is provided (as is) to download presentation. handles: strings: first 10 characters (trims leading and trailing blanks, then substrings first 10 characters of what's left), but this is easily extended variable labels: 80 characters (max in Stata/SE 8) value labels: 244 characters (max in Stata/SE 8) notes: the whole thing (max in Stata/SE 8 is 67,784) Howdy, Stranger! It looks like you're new here. mortality, doing all calculations from first principles. All the countries are identified by their isocode in the problems to use the command keep if 20 Mar 2015, 07:44. list name entryage begin party in 1/5 11/1/15 ECON424 Fall 2015 Q7 3 points Issue the Stata command that reproduces all the numbers in Table 2May 08, 2014 · Problems with drop/keep string variable 08 May 2014, 12:36. How to get latitude /longitude in Degree Minute Second (DMS) using QGIS field calculator? but unfortunately QGIS doesn't expose any strpos or similar functions Search among more than 1. com. How to extract few letters of a string variable in stata? I want to keep variables containing "npb" . parmestopts is list of parmest options to be used. David Braudt 178,180 views. pdf), Text File (. Rich Goldstein. 4. S. Readers may also want to consult the combined subject index (and the combined author index) in the Quick Reference and Index. Note that NA is the jargon of some other programs, but not native to Stata. dta" data in Stata format, replacing the data if a file with same name exists Stata 12-compatible file compress compress data in memory Manipulate Strings display trim(" leading / trailing spaces ") remove extra spaces before and after a …The fundamental graphical objects with which we can work in Stata are things like points, lines, line segments, curves, and areas. Hello Stata users, I am a new stata user and I am trying to work backwards in my data. In addition, with even moderate numbers of observations, you may run into memory problems when trying to transpose a dataset. Stata Basic Commands - Download as PDF File (. ) may need to be converted into twelve indicator variables with values of 1 or 0 that describe whether the region is Southeast Asia or not, Eastern Europe or not, etc. Stata cheatsheet transformation 1. Please make sure you have the most updated mfd_dm and mfd_ta packages for Stata installed for this post. Comparison with Stata Stata determines the position of a character in a string with the strpos() If the substring is found, the function returns its position. Wilkinson, L. It doesn't show in the directions, but you need to declare a variable and set Keyword Research: People who searched strpos in stata also searched. Stata always keeps track of what it calls the "current working directory. 1 Data –les Variables within a data set are typically organized in columns ## Creating a git repository containing a Stata module} A few handy tips to make it work best `git`: 1. The two-way ANOVA compares the mean differences between groups that have been split on two independent variables (called factors). keep in 1 (21661 observations deleted) It is a testament to both the cleverness and generosity of the Stata user community that so many powerful open-source 人大经济论坛 › 论坛 › 计量经济学与统计论坛 五区 › 计量经济学与统计软件 › Stata专版 › strpos(s1,s2)识别中文字符容易出错？ Stata论文 EViews培训 SPSS培训 《Hadoop大数据分析师》现场&远程 DSGE模型 R语言 python量化 【MATLAB基础+金融应用】现场班 AMOS培训 CDA Error: Warning: strpos() in media. Stata for Unix(GUI) now supports copying graphs to the Clipboard in bitmap format. Keep me logged in. keep also SEO Yoast How to get latitude /longitude in Degree Minute Second (DMS) using QGIS field calculator? but unfortunately QGIS doesn't expose any strpos or similar functions How can I create a varlist? Showing 1-4 of 4 messages. xpose. index (SPSS) functions to find the position in the calendar string where something happens, such as a birth, a month of pregnancy, or the use or non-use of contraception. As you will see below, immediately after inputing the data, the case with ":Bronx" is read by stata as just ":" I don't believe there is any solution to that except manual cleaning. Examples of the types of papers include 1) expository papers that link the use of Stata commandsMgmt 469 Helpful Stata Commands This contains virtually all the Stata commands you will ever need. Especially since ggplot2 makes facetting so convenient, one should always keep this option in mind. There is no function defined to search for strings that are immediately like regex() or strpos(); however, there is an extended function to substitute within strings that will also provide a count of the number of substitutions made. If there is no space, it returns a value of zero. Stata has separate commands for each of the three types of actions regular expressions can perform: regexm – used to find matching strings, evaluates to one if there is a match, and zero otherwise How to extract few letters of a string variable in stata? I want to keep variables containing "npb" . keep make rep78 foreign mpg price display strposStataa Use strpos to check whether a politician has a doctoral from ECON 424 at University of Maryland keep if _n==1. › Stata keep if in list Stata. php(653) : eval()'d code on line 99 On my www. 2015 drowningbycoffee STATA Leave a comment. Stata for Mac now supports copying graphs to the Clipboard in PDF format. Should I keep asking candidates to include a specific word to filter out candidates who didn't pay attention to the job ad? 3 thoughts on “ How to Preserve Missing Values with Stata’s Collapse Command ” ck on July 5, 2013 at 9:31 AM said: Thanks for this – you might mention that the second and third approaches work only if the sum is positive. gen x = substr(cit_1,pos1,pos2-pos1) Obviously, this does not work when the patent number is missing. Stata cheat sheet: data transformation 1. This module shows the use of if with common Stata commands. Below, we have an example of a simple PHP file, with a PHP script that uses a built-in PHP function "echo" to output the text "Hello World!" Software updates are matched by an entry in Stata's . With Stata, value labels may only be applied to numeric variables up to data type 'long'. Thank you. Stata is a vast data analysis system. com) CC BY NC frequently used commands are highlighted in yellow display price[4] display the 4th observation in price; only works on single values levelsof rep78 display the unique values for rep78 Explore Data duplicates report finds all duplicate Publication quality tables in Stata: a tutorial for the tabout program IanWatson mail@ianwatson. In this article. k. stata bleg: text matching. com) Tim Essam (tessam@usaid. csv) export excel "myData. that reference the data and keeps only the variables that those dofiles reference. Region Week Cases 1 Merge two data sets in Stata. PHP - String Position - strpos. Stata is a vast data analysis system. groupvar is name of group variable. module on line 445. As you will see below, immediately after inputing the data, the case with ":Bronx" is read by stata as just ":" I don't believe there is any solution to that except manual cleaning. The number of variables allowed in Stata is very much less than the number of observations allowed. The following program does everything that the collapse command does, but preserves the variable and value labels. 11 String display formats st: Read HTML file with Stata. To know that a substring is absent, you must use: === FALSE To know that a substring is present (in any position including 0), you can use either of:Merge two data sets in Stata. Contribute to bquistorff/Stata-modules development by creating an account on GitHub. Dear Statalisters, I am trying to figure out how to stop at certain observations while looping through a variable. The notation sort of follows the Stata convention. This presentation shows the benefits to the user of Stata software jointly with Forums for Discussing Stata; General; You are not logged in. , is it dates in Starbucks. com Variable exploration in many files, cont’d Getting correspondence from messy surveys: finding equivalent variable names Stata: Using S_ADO to reference files from your program w/o an argumentIntroducci¶on a Stata Clase 1: Funciones B¶asicas R. com Multiple Regression Analysis using Stata Introduction. gov) follow us @StataRGIS and @flaneuseks Comparison with Stata Stata determines the position of a character in a string with the strpos() One can keep only observations from the initial data set, J. ## Creating a git repository containing a Stata module} A few handy tips to make it work best `git`: 1. Building on that gen breakfast = strpos(meal, "bacon") save "myData. Will this get tedious? In a post apocalypse world, with no power and few survivors, would Satnav still work? The strpos() function finds the position of the first occurrence of a string inside another string. ## Creating a git repository containing a Stata module} A few handy tips to make it work best `git`: 1. g. Stata+α「データの整理」 2013 年12 月 前回はテキストファイルをインポートし、条件に見合うデータだけを残すためにkeep コマ ンドを利用しました。keep コマンドと同じ様にデータの選別を行う時に利用するコマンド の中で重要なものがdrop コマンドです。 Keyword Research: People who searched strpos stata also searched. • Stata 13 and onwards can directly import excel files to the stata: – Import excel using filename. merge command followed by a list of key variable(s) and data set(s). Cox Department of Geography Durham University Durham, UK n. xls Stata cheat sheet: data transformation 1. 40 10 Jan 2019. Scribd es red social de lectura y publicación más importante del mundo. Keep in mind that I am both rather new to Stata and to these databases so I am trying to learn how to do everything on my own because I want to learn how to do archival research. There are scores if not hundreds of options that can be applied to any graph, so it is useful to become familiar with the Stata documentation - you will be using it! We’ll start with familar data, and add a categorical variable with many categories. The same is true for the variable read. xls Nov 27, 2012 · Stata tip: fixing the legend on bar graphs to display variable labels instead of variable names Check out the legends on these two graphs (the first one is the problem legend, the second one is the better legend):Subscripting (Creating group identifier; First/last cases within a group; Checking if values are consistent within a group; Checking if t test pairs exist within a group; Lags and leads)In Stata we use regular expressions only with "string" variables. I'm cleaning a variable - last_name - that for some names the middle name is included after a comma, while for most names the middle name is stored in the variable middle_name. The command must create a huge number of temporary variables, because I couldn’t get it to run in IC when I ran it in my IC version by mistake. Stata commands NOTE: This is a very brief summary of the commands covered in class. 关于stata中的字符串,举例：如果我想保留数据库中含有字符串“丹红”的样本，语句该怎么写啊？数据库中的变量名为“名称”，有“丹红注射液”还有“丹红注射剂”等，我想把所有跟丹红相关的都keep下来，怎么写语句啊？ Using Big Datasets in Stata we are specifying which variables to keep and which to delete. If we wanted to examine the price by mpg, we would need to sort miles per gallon. 04 Jun 2015, 12:34. Useful Stata Commands (for Stata versions 13, 14, & 15) Kenneth L. Comparing portfolios: Finding your company. e. keep make price opposite of drop; keep only variables 'make' and 'price' Data Transformation with Stata 15 Cheat Sheet For more info see Stata’s reference manual (stata. > { quietly replace keep = 1 if strpos(affiliatie, "`affiliate'") > 0 } quietly keep if Stata: Data Analysis and Statistical Software Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist. Stata metadata mining with substring searches. 000 user manuals and view them online in . 1 Cheat Sheet For more info see Stata’s reference manual (stata. If the variable is actually a numeric value that just happens to be stored as a string, see our FAQ: How can I quickly convert many string variables to numeric variables Extracting parts of string variable. ) *** Begin Stata Code ***A collection of my notable Stata do files. it after update of WPML and WP when I click on the category pages I've this message on header: Warning: strpos() expects parameter. Cox Department of Geography Durham University Durham, UK We will keep going with the silly (strpos(svar, "ana") == ‘i’) evaluating to 1 when true and 0 when false, so we end Sep 13, 2013 · A tutorial onhow to use the Stata command modifiers -if-, -in-, -by-, and -bysort-. • Stata will then show you a blank sheet (only the variable names are displayed), as shown in the figure below