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Re: st: Extracting substrings from variables.> Could you give some tips on how this can be further improved or other easier commands I could use? > gen preght = regexs(0) if regexm(mdiag1x, " | | ") > I've tried doing the above using the 'regexs' command: I should also add I would like to specify that '637' and '642' above are just the stating numbers and might include other letters/numbers following it which is ok. > Thus I will have a new variable with subjects with certain specific diagnoses starting with the numbers/letters indicated above. The first argument may be a variable name, in which case the remaining. the inlist function looks for the first argument in the remaining arguments. I would however only like to extract those subjects with diagnoses starting with the numbers '637' and '642' and 'O1' (the last being a combination of the letter O and number 1). The -inlist- function may be what you need. > For example I have a variable 'Diagnoses' that contains all ICD 9 & 10 diagnoses for subjects included in the dataset. > Im trying to generate a new variable using 'stubs' or 'substrings' of a combination of letters and numbers to indicate what I would like to be included in the new variable. Welcome to what I hope is a very useful research resource for Stata programmers of. On Fri, at 12:45 PM, Amal Khanolkar wrote: Note that -inlist()- and -substr()-, like -regexs()-, are all When I say simpler, I mean conceptually: the syntax can be a bit long if inlist(substr(m1diagx, 1, 3), "637", "642")Ĭaptures the rule that "637" or "642" are allowed as the first three charactersĬaptures the other rule. proportion empstat if year2000 & inlist(empstat,0,3.
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With regex that this preference is supported. How do relative employment rates change when non-labor force participants are. Something simpler when that suffices and I've seen so many struggling (Nothing against regex, just a preference to use It's a motto of mine always to try something simpler before I try
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Nick Cox st: Extracting substrings from variables. If the abbreviation is not unique, Stata returns an error message. Re: st: Extracting substrings from variables. You can list a variable by using an abbreviation unique to that variable, as in list gear ro. Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at.