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Re: st: On calling a mata-defined function in Stata
From
Austin Nichols <[email protected]>
To
[email protected]
Subject
Re: st: On calling a mata-defined function in Stata
Date
Wed, 11 May 2011 12:04:21 -0400
Dorothy Bridges <[email protected]>:
I guess you refer to
http://www.stata.com/statalist/archive/2009-04/msg00976.html
which is worth referencing as it contains a lot of material.
Mata is more elegant for more difficult problems, but try:
clear all
mata:function f(x) return(x^2+2*x)
sca x=5
mata:st_numscalar("y",f(st_numscalar("x")))
di x,y
On Wed, May 11, 2011 at 10:19 AM, Dorothy Bridges <[email protected]> wrote:
> I found in the archives the following comment regarding calling a
> function in Stata: "or you can write a Mata function which you call
> from Stata ... [which] is often more elegant." I've tried
> unsuccessfully to find instructions on how exactly to go about this.
> What I'd like to do, I think, is:
>
> Mata:
> function f(x) return(x^2+2x)
>
> In Stata
> sca x=5
> sca y=&f(x)
>
> But, clearly, I don't know what I'm doing. Many thanks in advance.
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