2024 Stata variable is string

Stata variable is string

Author: gncu

August undefined, 2024

WebString processing is fairly easy in Stata because of the many built-in string functions. Among these string functions are three functions that are related to regular expressions, regexm for matching, regexr for replacing and regexs for subexpressions. Webread into Stata as string variables because they contain spaces, dollar signs, commas, and percent signs. 6destring— Convert string variables to numeric variables and vice versa We want to remove all of these characters and create new variables for date, price, and percent

Loop over string values of a varibale - Statalist

WebMar 13, 2024 · stata sub st r怎么用可以使用以下语法来使用 stata substr 函数： substr (string, start, length) 其中，string 是要截取的字符串，start 是截取的起始位置，length 是截取的长度。例如，要截取字符串 "hello world" 中的 "world"，可以使用以下命令： . local str = "hello world" . local sub = substr (str, 7, 5) . di sub 输出结果为： world 希望这个回答能够帮 … WebNov 9, 2014 · Note first that missing for Stata strings is an empty or blank string, not one or more spaces. Naturally, if you want to regard a string with spaces as missing, that is your decision. The function missing () can be used with a mix of string and numeric arguments. electricity panel cover

Recode missing values coded with a string in Stata

WebJun 30, 2024 · hence the variable country is not a string variable. It might be a numeric variable with value labels. In that case, you should find out the numeric value labeled as "Germany" – cap.py Jul 1, 2024 at 6:18 You're welcome. In case you found the answer … WebJan 7, 2012 · st: keep if variable is string. From: Shubhabrata Mukherjee st: Re: keep if variable is string. From: "Joseph Coveney" Prev by Date: Re: st: Fixed effects or random effects model? … WebNov 11, 2014 · 1 String variables can't have value labels. You can interpret this as if labels for string variables are meant to be the content of the variable itself. But you can replace: clear set more off input /// str1 var1 A B C end list replace var1 = "Aaa" if var1 == "A" replace var1 = "Bbb" if var1 == "B" replace var1 = "Ccc" if var1 == "C" list electricity penetration in india

Keep if variable contains string, then keep only that string - Statalist

WebA full list of string functions. Matching and searching regexm(); regexr(); regexs() These are the three functions that use regular expressions to perform matching. Regular expression is a method that allows for systematic searching, matching and replacing within strings using operators and letters. Read how Stata’s regular expressions work: WebSep 6, 2024 · You would just use the or/and operators, depending on whether you want any of those multiple strings to figure, or all of them to figure in the string variable: Code: replace var = x if ustrpos(name, "xxxxxxxxxxxxxx")>0 ustrpos(name, "yyyyyyyyyyyyyy")>0 … food that contains zinc and folic acidWebIn Stata you can create new variables with generate and you can modify the values of an existing variable with replace and with recode. Computing new variables using generate and replace Let’s use the auto data for our examples. In this section we will see how to compute variables with generate and replace. sysuse auto, clear food that contain tryptophan

"WebAug 30, 2024 · Now, the recent approach I am thinking about is to generate two loops: 1. Generating a new variable which gets running numbers, which are the same for each unique label in the string variable 2. Generate a forvalues loop … " - Stata variable is string

Stata variable is string

Stata FAQ: Numeric variables input as string

WebNov 16, 2024 · You can only tell the type of a variable by using the describe command. This is easy to fix. If you have a string variable and want to convert it to a numeric variable, you can use the encode command. If you have a string variable that has only numbers in it, … Web1 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. I know that I can do this using something like the following but for all 25 dx variables: gen dummy=0 replace dummy=1 if substr (dx1,1,4)=="6542" substr (dx2,1,4)=="6542"

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WebConversely, we can ask Stata to convert a variable stored as numeric to a string variable: . generate variable22 = tostring(age) Here, we have asked Stata to produce a new variable from the existing variable “age.” Compressing Data As we discussed above, data storage types have various implications for processing time and memory demands. WebJun 13, 2024 · If you do, the real benefit of Stata's Unicode regular expression functions is their much more powerful definition of regular expressions. To the best of my knowledge, only in the Statlist post linked here is it documented that Stata's new regular expression …

WebAs for what you should do, that depends on what you mean in Stata terms by coded "missing". If you are referring to string variables with literal values "missing" which should just be replaced by the empty string "", then that would be a loop over all string variables: http://wlm.userweb.mwn.de/Stata/wstavart.htm

WebEven though Stata can handle string variables, it is clear in many respects that numeric variables are much preferred. Not least, most statistical procedures just do not accept string variables. Fortunately, Stata offers some easy ways for converting string to numeric … Web24.4 Complex strings A variable might contain strings because the data simply could not be coerced into being stored numerically. A complex string is a string that contains more than one piece of information. Complex strings may be very long and may contain binary …

WebTo convert the string data into numeric in Stata, there are two ways to do that. One is by using manual window option, and the other is by using Command option. To use the first option, click on Data > Create or Change Data > Other variable transformation commands …

WebMay 27, 2024 · Sometimes a variable that should be numeric gets entered into Stata as a string. You can fix that with the destring command, which converts a string variable that contains numbers to a numeric variable. The syntax is just destring variable, replace, … electricity outWebFeb 28, 2024 · At least least some of your observations contained strings that could not be translated into numbers, so Stata did not destring the variable. You should investigate these observations. (One way to do this is -browse TITULAR if real (TITULAR) == . electricity payoutWebNov 16, 2024 · Stata is reading in my variables as string instead of numeric. What should I do? Users often find that Stata is reading in most, or even all, variables as string variables, when most, or even all, are—or should be—numeric. If a variable is string, then typically … food that contain thiamineWebA variable might contain strings because it records categorical information. Suppose that you have read in a dataset that contains a variable called sex, recorded as “male” and “female”, yet when you attempt to run a linear regression, the following message is … electricity phetWebJul 22, 2024 · Determining if a variable is string or numeric - Statalist You are not logged in. You can browse but not post. Login or Register by clicking 'Login or Register' at the top-right of this page. For more information on Statalist, see the FAQ. Posts Latest Activity Page of … We would like to show you a description here but the site won’t allow us. electricity pay as you go tariffsWebMar 15, 2024 · It's for variables that are essentially numeric in content, but have been misread somehow. A few individual characters may have caused this, or perhaps metadata have crept into the first few observations. encode is the command for mapping arbitrary string variables to numeric variables with value labels. food that contain tyramine food that contains uric acid