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Re: st: RE: loop in stata
From
fernando andrade <[email protected]>
To
[email protected]
Subject
Re: st: RE: loop in stata
Date
Thu, 11 Aug 2011 15:27:37 -0400
thank you Nick!!!
On Thu, Aug 11, 2011 at 3:18 PM, Nick Cox <[email protected]> wrote:
> Various ways to do it, none of them exactly beautiful:
>
> tokenize "a b c m"
> local j = 1
>
> foreach v in z y x n {
> tab `v' ``j''
> local ++j
> }
>
> Or more symmetrically:
>
> local J : word count "a b c m"
>
> forval j = 1/`J' {
> local x : word `j' of "a b c m"
> local y : word `j' of "z y x n"
> tab `x' `y'
> }
>
> See also
>
> SJ-3-2 pr0009 . . . . . . . . . . . . . Speaking Stata: Problems with lists
> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N. J. Cox
> Q2/03 SJ 3(2):185--202 (no commands)
> discusses ways of working through lists held in macros
>
> or (directly)
>
> http://www.stata-journal.com/sjpdf.html?articlenum=pr0009
>
> for a much longer discussion.
>
> Nick
> [email protected]
>
> fernando andrade
>
> I am trying to make a simple loop in stata but i cannot figure out how to.
> i have two sets of variables let's say:
> set1: a b c ...m
> set2: z y x...n
>
> i want to make a loop to run the tabs
> tab a z
> tab b y
> tab c x
> .
> .
> .
> tab m n
>
> i tried
> foreach X in a b c... m{
> foreach Y in z y x... n{
> tab `X' `Y',m
> }
> }
>
> the loop gave me all the posible combinatios between the two sets of
> variables. Is there a way to make a loop that tabs only a with z, b
> with y and so on
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/