Equivalent function of R's "%in%" for Stata

Question

Is there an equivalent function of "%in%" from R for Stata?

please describe what this operator does - people who can answer will probably know Stata, but may not know R — mdsumner, Feb 23 '11 at 13:28
It returns a boolean: true is lfs is in the rhs list, false otherwise. — crayola, Feb 23 '11 at 13:54
it's best if you add essential details to the question, rather than hope they are found in the comments — mdsumner, Feb 23 '11 at 15:00

Keith · Accepted Answer · 2011-02-26T18:42:53.687

As already mentioned, it's hard to tell what you need from the question. inlist() might work, or it might not depending on the setting.

I find that Stata's macro lists functions are invaluable. Store your list in a macro (local or global) and then a suite of useful commands are available:

local list   a b c d d e 
local search c 
local search_in_list : list search in list
di    `search_in_list'

These can be calculated on the fly:

if `: list search in list' {
    actions if true
}

score 2 · Answer 2 · answered Sep 07 '11 at 23:31

2

Stata does not offer the same flexible tool, but inlist will cover the basic operation that you might be looking for, as in count if inlist(country,"FR","US","DE").

answered Sep 07 '11 at 23:31

Fr.

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score 1 · Answer 3 · answered Mar 25 '11 at 01:27

1

working with lists proper is one way, you could also just treat the rhs like a string and treat the lhs as a regex, use regexm()

answered Mar 25 '11 at 01:27

justin cress

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Equivalent function of R's "%in%" for Stata

3 Answers3

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