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Re: st: inlist() equivalent for mata?
From
"William Gould, StataCorp LP" <[email protected]>
To
[email protected]
Subject
Re: st: inlist() equivalent for mata?
Date
Thu, 20 Mar 2014 10:07:06 -0500
Andrew Maurer <[email protected]> writes,
> I am trying to find a mata equivalent of Stata's inlist() function, but
> have not found anything similar when looking through the directory of
> built-in mata functions.
How about
sum(x :== (x1, x2, ..., xN))
This works with numbers,
sum(x := (1, 5, 7, 9, 11))
and it works with strings,
sum(s := ("this", "that", "whatever"))
sum(x := x1, x2, ..., Xn)) returns the number of matches found.
If x1, x2, ..., Xn are distinct, it returns 1 if a match if found,
and returns 0 otherwise.
-- Bill
[email protected]
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