----- Original Message -----
From: "Scott Merryman" <[email protected]>
To: <[email protected]>
Sent: Friday, August 01, 2003 1:26 PM
Subject: Re: st: not repeating the 'if' command
> ----- Original Message -----
> From: "Fred Wolfe" <[email protected]>
> To: <[email protected]>
> Sent: Friday, August 01, 2003 1:13 PM
> Subject: Re: st: not repeating the 'if' command
>
>
> > At 02:04 PM 8/1/2003 -0400, you wrote:
> > >I know that in SPSS there is way to set a filter for a series of commands
> > >using a 'do if' statement. Is there a way to do this in STATA? For
> > >example, I want to perform a large set of analyses on a set of groups
> > >(group == 1....group == 50). Do I have to continue to type if group == 1
> > >after each command? ex:
> > >
> > >tab race if group == 1
> > >tab sex if group == 1
> > >tab race sex if group == 1
> > >
> > >tab race if group == 2
> > >tab sex if group == 2
> > >tab race sex if group == 2
> > >
> > >or, is there a way to globally set off group == 1 for all analyses then a
> > >command to globally set off group == 2 for all analyses, and so
> > >on...? The above code seems too cumbersome.
> > There are a number of approaches you can use:
> >
> > 1) bys group: tab race * etc */
> >
> > 2) forvalues i = 1/ [put the highest value of group here]{
> > */ all of your analyses here */
> > tab race if group == `i'
> > tab sex if group ==`i'
> > tab race sex if group == `i'
> > }
> >
> > Fred Wolfe
> >
>
>
> In addition, if you group variable is not composed of consecutive numbers:
>
> levels group, local(levels)
> foreach l of local levels {
> tab sex
> tab race
> tab race sex
> }
>
> Scott
That should be:
levels group, local(levels)
foreach l of local levels {
tab sex if group == `l'
tab race if group == `l'
tab race sex if group == `l'
}
Scott
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
