Stata replace if string contains. The code could look something like .

Stata replace if string contains combination of characters) to be entered, you need to enclose them with " ". I have imported an excel data in Stata which contains 16 variables (2 string variables and 14 numeric variables) with some missing values (specifically "n. 4 Strings. One difference is that string values go in quotes; another is that for a string variable missing is "", i. Stata determines by context whether + means addition or concatenation. The above code will strip out everything except alphanumeric characters from dirty_string to create clean_string. drop __000001 //this did drop this variable *and then destring worked fine. Sure, it is possible to translate, but using non-Stata terminology in Stata is to be avoided as much as the reverse. Logically, we just need to see what would happen if we replace d with anything that is a shorter string, but empty string will A common task with text data is identifying whether one string contains another. I cannot use the ignore() for blank/empty cells. Here, we are going to use the example by STATA “hbp2. "String only" variables > This code will loop through the replace_commands. For example, if we have a variable coded as “0” or “1”, but in a given observation, it was coded by mistake as “1b”, the destring command will not work. B. Let’s use the auto data for our examples. Jun 19, 2022 · 将数据从excel复制或导入stata中经常会遇到字体红色的情况，一般是因为数据非字符。运行destring,replace经常看到 “contains nonnumeric characters; no replace”警告 这种情况最好不要贸然运用destring加force等选项，这样可能带来数值扭曲。 May 14, 2019 · I have a large dataset in Stata and I have to clean the names in order to match the prenames later on. Check out its help. The strings are things like "1000. There are some very good summaries that cover aspects of string variables (e. 1, -dataex- is part of your official Stata installation. The length of x, y and z may vary, but they all have two slashes \ How can I replace the part before the second \, including itself, with some other value? I tried this but it didn't work: replace newvar=ustrregexra(oldvar, "\", "", 2) It gave me a blank newvar. + is used for the concatenation of two strings. gen rep78_str = string(rep78) converts the numeric and missing values of rep78 to strings. 2. May 31, 2014 · In addition to Steve Samuels' excellent suggestions, three standard devices in this territory are . Olds 98 21 4060 3. The dataset should look like the following: st: replace part of string variable. For example: The question is explicitly about Stata but the code looks little like Stata. The most common example of a complex string, however, is a date: “15 Jan 1992” contains three pieces of information—a day, a month, and a year. They can contain anything from letters, numbers, and spaces to other special characters. " Prev by Date: Re: st: Removing quotation marks in string variables; Next by Date: Re: st: Removing quotation marks in string variables; Previous by thread: Re: st: Removing quotation marks in string variables; Next by thread: Re: st: Removing quotation marks in string variables; Index(es): Date; Thread Mar 7, 2021 · A word would be defined as at the start of the string, end, or separated a space. codes for distinct answers, say, "42"for "cricket"or "1"for "Stata". Computing new variables using generate and replace. and the https:// parts from these variables over a wide range of URLs. Nonnumeric Whether the length of the string is greater than the length of the string with the Stringfunctions Contents Functions References Alsosee Contents abbrev(𝑠,𝑛) name𝑠,abbreviatedtoalengthof𝑛char(𝑛 What are string variables? String variables are essentially sequences of characters. Now I must type as many command lines as certain conditions. Stata Journal 4: 484–485. ) will always give the string s with its first word removed. 2006. a. Jul 31, 2020 · Hi Everyone, Please I also have a similar problem and I would need your assistance. Example 2: We have a variable that contains full names in the order of first name and then last name. In Stata an empty string "" is regarded as a missing string. Roger--Roger Newson Recoding string variables builds on the same principle as for numeric variables. if threshold != "LOS" collapse (firstnm) cost los n_casescost n_caseslos append using Master. For example, I have a variable of jobtitle and the observations can vary "CEO" "Chief Executive Officer" "President" "President & CEO" "President & Chief Executive Example 1: A researcher has addresses as a string variable and wants to create a new variable that contains just the zip codes. tosub into s would result in a string longer st: indicator for "if cell contains the word or phrase" From: Shehzad Ali <[email protected]> Re: st: indicator for "if cell contains the word or phrase" From: Nick Cox <[email protected]> Prev by Date: Re: st: combine 2 margnisplot; Next by Date: st: sensitivity and specificity after xtgee subinstr()—Substitutetext Description Syntax Remarksandexamples Conformability Diagnostics Alsosee Description subinstr(s,old,new Mar 3, 2023 · The destring command will only work if the string variable we are trying to convert to numeric contains no non-numeric characters. Some of these names contains a space, like New York. You can create and change string variables with gen and replace just like numeric variables. We want to create a new variable with full name in the order of last name and then first name separated by comma. regexs(n) returns the nth substring within an expression matched by regexm (hence, regexm must always be run before regexs). I could use 'force' which would make a new var and replace the blank cells in ". dta” Example 1: A researcher has addresses as a string variable and wants to create a new variable that contains just the zip codes. In the results shown below, results shows that the variables we used in regression doesn’t have any observations and only two variables i. Because make contains both the make and the model of each car, and make never contains a space in this dataset, we have found each car’s model. - then replace oldstring = subinstr It evaluates to 1 if the string matches the expression. Stata has the following regular expression functions: regexm(s, re) performs a match of a regular expression and evaluates to 1 if regular expression re (a string) is satisfied by the string s, otherwise returns 0 Jun 18, 2020 · Below please see the exact commands and Stata responses: destring NUM_CUENTA, replace NUM_CUENTA: all characters numeric; replaced as double. "String only 13. 2004. > >For example for three different firms > > > >STRYKER ITALIA SRL > >STRYKER ITALIA SRL - > >STRYKER ITALIA SRL S > > STRYKER SRL > > STRYKERITALIA Sep 30, 2022 · by an empty string, conditional on that string occurring as a word (which is the nub of the problem). However, anticipating that this may be problematic, Stata offers various commands to change string variables into categorical variables and vice versa. Beware of typos. 1997. For all Person 'ABC', the country should be the same. append using Master. . If you are running version 15. Intuition is the weaker part of documentation. To create new variables (typically from other variables in your data set, plus some arithmetic or logical expressions), or to modify variables that already exist in your data set, Stata provides two versions of basically the same procedures: Command generate is used if a new variable is to be added to the data set summarize. Reprinted in Stata Jan 7, 2023 · Regular expressions can be very effective in cleansing string data. The function missing() can be used with a mix of string and numeric arguments. xls replace cost = . We will read the year’s digits until we reach the end of the string, hence the use of a dollar sign. I need to get the position of that different character. com If s contains “abcdef”, then substr(s, "XY", 2) changes s to contain “aXYdef”. How can I write the latter part of command? strpos()—Findsubstringinstring Description Syntax Remarksandexamples Conformability Diagnostics Alsosee Description strpos(haystack,needle From Michael McCulloch < [email protected] > To [email protected] Subject Re: st: finding non-numeric characters before I can destring: Date Thu, 18 Oct 2007 08:52:56 -0700 注：本文为 Stata 学习笔记，主要参照教科书：Baum, C. Elmar: I had a similar issue with an unknown character (it wasn't a boxit was a symbol that looked like a em-dash with a dot over it and, similar to your situation, acted like a end-of-line character for some programs. Some examples: 2generate—Createorchangecontentsofvariable Menu generate Data>Createorchangedata>Createnewvariable replace Data>Createorchangedata>Changecontentsofvariable "facility" is a string variable and "bir" is one of the values "facility" takes. low and exchange has 24 variables. ; Find all instances of this character in contactno and replace with an empty string (i. dta, replace clear all import excel France. Medeiros Regular expressions in Stata 7. ") which caused the strange output. So, in the example below, I want to replace the generic word "outcome" (and all compound words containing the word "outcome") with a more specific word like "colon_cc": lookfor—Searchforstringinvariablenamesandlabels Description Quickstart Syntax Remarksandexamples Storedresults Reference Alsosee Description Jul 12, 2018 · Hello the Statalist Community, I have a string variables which contains spaces in some of the values as Prefixes and suffixes as shown below string_var" Kenya" "Ireland " From string to numeric variables. " or replace them with recognized stata missing values such as ". Am using "replace AB="my string" if "var"="value". Naturally, if you want to regard a string with spaces as missing, that is your decision. It is probably simplest for you to repeat import excel or Oct 22, 2021 · Dear Stata users, In the following data, I want to replace variables d2a1 d2a2 d2a3 to missing 'cause variable d2a <100. Thanks in advance, Ben Jun 6, 2017 · I have a variable called diagnosis and I want to replace everything that contains the word "pneumonia" with just "pneumonia" I tried this: replace diagnosis = "Pneumonia" if regexm (diagnosis, "pneumonia") But I got an error: unrecognized command: regexm. replace <varname> = <exp> if strmatch(<strvar>, "*GHMB*") (although I guess you are looking for "GmbH" instead of "GHMB") Better advice requires more information abut what _exactly_ you typed and what _exactly_ Stata replied, as stated in the FAQ (which you are asked to read before you post). Remarks and examples stata. For example I have a variable that contains last names. Apr 12, 2022 · You can achieve this in one line of code as follows: Take the first character of contactno. If the names are as in `c(Mons)', you could go tokenize "`c(Mons)'" forval i = 1/12 { replace x = m`i' if index(Y, "``i''") } Nick [email protected] Joseph Coveney > FUKUGAWA Nobuya wrote: > > Suppose we have string variable Y, and we would like to replace > variable X when variable Y contains certain characters such as > "Dec". The first case most often occurs when importing data from another source. However the type of the variable is str8. - then replace oldstring = subinstr The question is simple (yet I'm stupid enough not to get through): I have a string of words and i need stata to be able to recognize one of the words and drop all the observations where there's none. 《An Introduction to Modern Econometrics Using Stata: Stata Press》学习整理而得，内容未必完全正确，会随学习过程的推进不断补充、修改和更正，… Newson, R. For columns, always say variables; for rows, always say observations. The result will be the position of the second string within the first string, or zero if the first string does not contain the second string. ado) you will see that this solution requires the user to type one line (good) and Stata to execute dozens of lines of code (not so good). Stata commands (v. " Mar 12, 2022 · 文章浏览阅读10w+次，点赞29次，收藏159次。本文介绍了在Stata中处理数据时遇到的两个关键问题：如何使用encode将字符型GDP转换为数值并可能遇到的非数值字符问题，以及destring的使用来避免对数运算错误。 Nov 5, 2016 · Dear all, I would like to destring string variable, which contains comma as a decimal separator . If they are just . See the -help- on -functions-, particularly string function. How can I write the latter part of command? Aug 13, 2014 · replace asset_group=below10m if assets < 10. sysuse auto, clear Jan 8, 2019 · Hello am new to stata, the task that am trying to achieve is to replace a numeric value with a string, but it keeps on saying type mismatch. Is there any way to code . 1 = . > In other words, we want to write; > replace X="m12" if Y Nov 12, 2020 · I have a basic question, which I still have not been able to solve. If you type keep if facility==bir then Stata will look for a string variable named bir, and will complain if it doesn't find it. 000000 you effectively are asking Stata to replace the content of the variable called below10m if the condition is met; Stata correctly complains that it can not find said variable. cmpute: A tool to generate or replace a variable. 2 String operators The + and * signs are also used as string operators. ) destring—Convertstringvariablestonumericvariablesandviceversa Description Quickstart Menu Syntax Optionsfordestring Optionsfortostring Remarksandexamples 2subinstr()— Substitute text Diagnostics subinstr(s, old, new, cnt) and subinword(s, old, new, cnt) treat cnt < 0 as if cnt = 0 was specified; the original string s is returned. Using recode. Fortunately, Stata offers some easy ways for converting string to numeric variables (and vice versa). Extra spaces that go beyond our need are harmless, because " 1 " , in which “1” has two spaces before it and two after it, is treated the same way as " 1 " , in which “1” has Dear all, Suppose we have string variable Y, and we would like to replace variable X when variable Y contains certain characters such as "Dec". This lets you use the result of a strpos() to say if one string contains another. From Nick Cox < [email protected] > To [email protected] Subject Re: st: How to check whether a string variable contains some characters: Date Sat, 26 May 2012 00:25:34 +0100 Jun 5, 2015 · so your problem appears to be different. dta, replace Sep 9, 2016 · I am trying to merge two datasets to make a panel but when I run the command of merge it shows the 'variable' in using file is in string form. However, when I do that, STATA creates a number which ignores all the values following comma. Jan 12, 2018 · import excel France. Weesie, J. [GSW]11Creatingnewvariables3 . After the month, we have the year, another series of digits. Putting 1 and 2 together: substr(s,strpos(s," ")+1,. Nov 16, 2022 · Most problems involve missing numeric values, so, from now on, examples will be for numeric variables only. Does Stata have a way to use the functionality of subinword without having to replace it, and instead flag the word? Stata can store strings up to 2-billion characters long and can store strings containing binary information, including binary 0 (\0). 经管之家(原经济论坛)-国内活跃的经济、管理、金融、统计在线教育和咨询网站 Not least, most statistical procedures just do not accept string variables. breakfast = 1 if meal== [then something saying contains eggs, bacon, etc. Mar 20, 2014 · I have two string variables that differ on one character for each observation. In Stata, string variables are easily identifiable when you open the data browser or run codebook commands. A. , ""). Note that real()/string() are functions and must be used in conjunction with a Stata command. In this section we will see how to compute variables with generate and replace. Digital economy, rural development, energy, trade etc etc etc) and i need to 【独家发布】关于stata中的destring命令 - Stata专版 - 经管之家 (原人大经济论坛) Aug 24, 2016 · Note: Not tested. 3. I want to replace all occurrences of a substring in some string variable with another Jan 23, 2014 · I am trying to create a do file to import a bunch of these files into Stata and need a reliable method to remove the www. g. We could have left out the ^ and $ characters that signify the beginning and end, respectively, of the string. However, if myvar were string, . The code could look something like . *So I added the following before the destring and it solved the problem! desc // the variable __000001 is listed there. I need a solution that differs from manually scripting replace Country = "USA" if Person == "ABC" as my dataset has more than 10,000 unique observations for Person. I want to replace AB which is 1 with a string value. The basic steps applied by split are, given one or more separators, to find those separators within the string and then to generate one or more new string variables, each containing a part of the original. The result will be the position of the second string within the first The code could look something like . Notice: On April 23, Conditional statement with multiple string values? Date Thu, 7 Jun 2012 16:42:01 -0400: Jul 16, 2020 · This page shows examples of how one might use string related commands in STATA. Stata Journal 13: 862–866. regexr(s1,re,s2) searches for re within the string (s1) and replaces the matching portion with a new string (s2). replace myvar = myvar[_n+1] if myvar == "" would be correct syntax, not the previous command, because the empty string "" is string missing. string() string(n) is a synonym for strofreal(n) and converts numeric or missing values to strings. It > contains a lot of different companies with a varied different > names although often they indicate the same company. More specifically, the strings include different studying topics (ex. If your complex The strpos() (string position) function takes two strings as arguments. It is preferable to generate a copy of the old variable before you start replacing values (or expressions, which is the term used below). I have Stata/IC version 12. If + appears between two numeric values, Stata adds them. How can you delete observations from a variable that contains strings that have the specific word for instance. if threshold != "Cost" replace los = . I hope this helps. 2013. If + appears between two strings, Stata concatenates them. strpos will find whenever the string is present, but I am looking for something similar to subinword. xls drop if threshold !=. Stata tip 13: generate and replace use the current sort order. 4. Copying previous values downwards: the cascade effect Dec 11, 2023 · 文章浏览阅读5656次。Stata中的replace命令用于替换数据集中的值。它有几种用法，具体如下： 1. GameMaker Studio is designed to make developing games fun and easy. Jul 24, 2014 · Apparently my dataset contains missing values (blank cells, no ". Jun 1, 2017 · I have a string variable that looks like this x\y\z. From: raoul reulen <[email protected]> Prev by Date: Re: st: test or ftest command; Next by Date: st: Coefficients in xtpcse; Previous by thread: st: replace part of string variable; Next by thread: Re: st: replace part of string variable; Index(es): Date; Thread May 29, 2018 · Note that by setting sum==2 in the last line you require that only 2 of the 6 statements on your third criteria are true. list make mpg weight make mpg weight 1. NoteIn this example, we are taking a… Dear all, Suppose we have string variable Y, and we would like to replace variable X when variable Y contains certain characters such as "Dec". a string that contains nothing. You can read more about this in [U] 12. ] [U]24Workingwithstrings2 Therearenoobservationsbecauseregress,alongwithmostofStata’s“analytic”commands,cannot dealwithstringvariables. gen education = educ_none + 2 * educ_prim + 3 * educ_secabove Dec 6, 2016 · Stata is not a spreadsheet application: the terminology of rows and columns is used only for matrices. strpos() The strpos() (string position) function takes two strings as arguments. The dataset attached is malformed for Stata purposes as metadata appear in the first observation and as a side-effect all variables are string. If for an observation 3 of those criteria are true, using this code, this hypothetical observation would be assigned a missing value. Juni 2010 11:05 An: [email protected] Betreff: st: Change letter in string Hi, I would like to ask you how I can change a letter in a string in stata. when I tried to destring that variable using command "destring education, replace" it gives the result "contains nonnumeric characters; no replace". dm43: Automatic recording of definitions. Regular expression functions in Stata. destring TITULAR, replace TITULAR: contains nonnumeric characters; no replace. You should type keep if facility=="bir" That way, Stata knows that "bir" is a string value. In other words, we want to write; replace X="m12" if Y (contains "Dec") replace X="m11" if Y (contains "Nov") replace X="m10" if Y (contains "Oct") . The first column shows the code you would use, the second column shows how your data might look like before applying the code, and the third column shows how your data would look like after applying the code. Jun 15, 2017 · It greatly simplifies the process of replicating your Stata example in another person's Stata, so that code can be tested on it. I have tried to use indexnot() function but it yields false re If you look inside the code for egen and also for its max() function (which on your system will be inside _gmax. Normally I would drop the obs with the blank cells, however, I need those rows for other research purposes. Stata Technical Bulletin 35: 6–7. Jan 5, 2023 · Note that we do not need to generate a new variable or replace an existing variable; we just get Stata to work with a version of the variable with extra spaces. – Jan 21, 2020 · I have a string variable called text, which consists of whole sentences, where the names of some cities appear. Dec 5, 2021 · 将数据从excel复制或导入stata中经常会遇到字体红色的情况，一般是因为数据非字符。运行destring,replace经常看到“contains nonnumeric characters; no replace”警告这种情况最好不要贸然运用destring加force等选项，这样可能带来数值扭曲。 Jul 29, 2020 · I wish to replace missing countries with the matching values in Person. ^[0-9]+[a-zA-Z]+[0-9]+$ This is not the only way to parse this string. A string containing just a space or spaces is not an empty string; it's not often informative, but that's a human issue. The solution in my earlier answer requires Stata to execute one line of code. How can I change the letter "e" with the letter "a" in all names? Nov 16, 2022 · When destring was incorporated into Stata 7, it was largely rewritten. sysuse auto . dta save Master. For example, if make contains the word amc (after standardizing case to lower) then the car was built by AMC. replace replace string variables in varlist with numeric variables if any string variable contains nonnumeric characters not specified with ignore(), then no Stata: Data Analysis and Statistical Software . Even though Stata can handle string variables, it is clear in many respects that numeric variables are much preferred. You might need to correct a mistake, or the string variable might be a genuine composite that you wish to subdivide before doing more analysis. VW Rabbit 25 1930 2. If it is greater, we found the word in question. I am interested in creating a dummy variable if text contains some specific cities, lets say Paris, Madrid, Berlin, New York. and replacing it with nothing, how do I achieve the same in Stata? Mar 4, 2014 · Is there any way to code a binary variable dependent on keywords being present in a given string variable? Simple example: I have a string variable that describes various meals and a dummy variable that denotes if a given meal is breakfast or not. In Excel I can do this simply by finding https:// or www. 62" and when I try using destring, replace, I am told that my variables contain non-numeric characters. 替换单个值 replace 变量名 = 新的值 if 条件 例如，将变量age中的所有值为99的观测替换为缺失值： Oct 17, 2022 · Most often when I search the internet for help on Stata, it is probably when I need to work with string variables (such as names). 14+) help string functions help Unicode locale help set locale_functions ustrregexra Replace a pattern Core functions [jkl] = j or k or l In Stata you can create new variables with generate and you can modify the values of an existing variable with replace and with recode. One reason the code might fail would be that the text in question is, say, "ALASKA". Commandswanttoseenumbers Paolo Grillo, MD > >I have a dataset with a string variable named VEND. do file one line at a time, executing each replacement command. , this page). To replace all values equal to "bad" with "good" May 10, 2018 · I often find I want to make my generic Stata code suit the specifics of my dataset/output. Not least, most statistical procedures just do not accept string variables. use afewcarslab (Afew1978cars). 1 for Windows. " type of missing values) and all efforts to delete the "n. e. Royston, P. Feb 2, 2022 · gen found = 0 foreach v of var I* { replace found = (`v' == "R45851") if !found } list if found If the varlist (here I*) contains numeric variables, filter first, or put capture in front of the replace. destring CREDITO_2018_01, replace CREDITO_2018_01: all characters numeric; replaced as double. Frank -----Original Message----- From: [email protected] [mailto: [email protected]] On Behalf Of TEWODAJ MOGUES Sent: Tuesday, September 13, 2005 4:47 PM To: Stata _ Subject: st: Replace a substring Hi, I am hoping that this is quick and simple to answer. Note that this problem can only arise for string variables, so you need to work on Hello everyone! I'm fairly new to STATA and I have data that I cannot seem to convert from strings to numbers. real() Create New, or Modify Existing, Variables: Commands generate/replace and egen. 5 String Variables. Nov 9, 2014 · Note first that missing for Stata strings is an empty or blank string, not one or more spaces. (In some ways, the original destring command violated Stata’s philosophy because it was too easy to change much of your dataset without the safeguard of having to spell out some injunction such as , replace. . However, you need to use a command called replace instead of recode. If you want a certain string (i. Jul 7, 2019 · where the "_____" part should check if a specific sequence of letters I'll define is part of name. destring DEBITO_2018_01, replace This subreddit is dedicated to providing programmer support for the game development platform, GameMaker Studio. A common problem in my data are umlauts, which are displayed as below: JEAN S ACUTE OVER E In Stata this is often true because Stata treats string-encoded variables as missing and will not use them in analyses. , the result is the string from character start to the end of string s. Chev. eoxc iasmjfr guurc atrnz oqckm ygkmd keuymcz ppp vgzgbf geqml bvofw otgr jymivxuu cagfid sbwdh