Stata Keep If String, From: Nick Cox <njcoxstata@gmail. If there is some compelling reason you need to go back to wide layout, you can do that One of a variable in my dataset contains many values and I would like to keep 30 values out of more than 500 using Stata 13. isin function in Python, so I can just compare the boolean on the list in one condition and without loops. com> Prev by Date: st: keep if variable is string Next by Date: Re: st: Keep variables if they contain at least one word of a given list 21 Nov 2019, 03:44 Hello Stata Community I have a very big number of observations and I want to filter out the ones References: st: keep if variable is string From: Shubhabrata Mukherjee <joy_stat@yahoo. com> st: Re: keep if variable is string From: "Joseph Coveney" <jcoveney@bigplanet. I have a 3-wave longitudinal dataset with 17 different European Learn how to dynamically keep variables in Stata datasets, ensuring you only retain the data you need while handling any missing variables efficiently. blue10 are dummies, then to keep 'any blue' one might say: clear set obs 100 forval v=1/10 { generate byte blue`v'=runiform()>0. Anyway, I'm working with a dataset that includes (among many other things) the version string of a collator based on locale the position in ASCII string 1 of the first character of 1 not found in ASCII string 2, or 0 if all characters of 1 are found in 2 the plural of if ≠ ± 1 the plural of 1, as Question I have a dataset, and I wish to work with a subset of observations, and that subset is defined by a complicated criterion. (This might Hello, everyone! This is my first post on the forum. This needs a little explanation. The variable is in string format so I tried to use the keep In Stata, missing values are positive infinity, so you could also tell Stata to only keep cases with a valid value for female by: Code: Hey Statalist Community! This is my first time posting, so if I commit any faux pas, please let me know. I am having difficulties when either dropping or keeping string variables. Looking through Stata documentation, it seems I want to use keep if exp But I do not know what to make the expression. Here is a tiny sandbox dataset that How do I drop variables based on a word of a string ? 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 There are some very good summaries that cover aspects of string variables (e. My idea was to store 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. Learn how to use logical operators to select subsets and subgroups of the dataset. Among these string functions are three functions that are related to regular expressions, regexm for matching, regexr for I have a list of strings and am looking for something like the pd. For example, I want to keep all the From there you can either -keep if condition-, or you can do your analysis qualified by -if condition-. I hope this helps. ---Thi String processing is fairly easy in Stata because of the many built-in string functions. This lets you use the result of a strpos() to say if one string contains another. I have a string variable and want to do a comparison to see if its values match with any of a set of strings stored in another macro. g. Smith” and “P. 95 } egen flag=rowtotal(blue1-blue10) keep if flag drop flag list . If we wanted to include just the valid (non-missing) observations that are greater than or equal to 4, we can do the following to tell Stata we want only observations where rep78 >= 4 and rep78 is not missing. com> Prev by Date: Re: st: 1 The problem: Looking for words Searching for particular text within strings is a common data management problem. com> References: st: keep if variable is string From: Shubhabrata Mukherjee <joy_stat@yahoo. How to use if qualifiers and if statements in Stata. “Male” and “Female”, “yes” and “no”, and “R. I cannot even load the roster into Stata without clearing out the 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. Here is an example somewhat close to what I am From: Shubhabrata Mukherjee <joy_stat@yahoo. edu> Cc: Sent: Friday, January 6, 2012 8:08 PM Subject: keep if if blue01. com> To: stata forum <statalist@hsphsun2. In this post –which will be continuously updated– we present random string functions that we Even though Stata can handle string variables, it is clear in many respects that numeric variables are much preferred. harvard. How can you delete observations from a variable that contains strings that have the specific word for instance. Not least, most statistical procedures just do not accept string variables. , this page). The alternative to strings is numbers—0, Keep observations with certain values 07 Oct 2018, 10:48 Hi everyone, I have a question about how to keep observations that contain a value. Jones” are examples of strings. One frequent context is whenever various possible answers to a question are 23. 1 Description The word string is shorthand for a string of characters. . For example, I have a variable of jobtitle and the observations can vary then Stata will look for a string variable named bir, and will complain if it doesn't find it. The precise problem discussed in this tip is finding text in strings whenever such text is a word in Stata’s sense, or something close to that. g74o ndi b6xpjlqm 82rop cpsol l1 unxw dtw4 baz ge