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RE: st: simulataneous foreach loops
From
Nick Cox <[email protected]>
To
"'[email protected]'" <[email protected]>
Subject
RE: st: simulataneous foreach loops
Date
Mon, 15 Nov 2010 18:31:38 +0000
Like Nick Winter, I see only one loop in this problem.
The situation is also discussed at length in
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
Nick
[email protected]
Nick Winter
It sounds like you want something that the old,
out-of-date-and-no-longer-supported -for- command made easy:
for num 101 102 103 \ num 3 5 3 : di "team X will have Y members"
-for- is no longer documented, so you'll have to guess how to use it if
you want something more complicated than that.
In modern Stata, you could do something like:
local tnums 101 102 103
local tsizes 3 5 3
forval i=1/3 {
local team : word `i' of `tnums'
local size : word `i' of `tsizes'
di "Team `team' will have `size' members"
}
On 11/12/2010 2:45 PM, Lim, Raymond wrote:
> I preserve before the loop in my actual code. The loop right now creates team 101 with 3 members, team 102 with 5 members, team 103 with 3 members, etc. Yes, there's a one-to-one mapping from tt to NN. I basically need two loop indices to change simultaneously. For example, first round (i=103, j=3), second round (i=139, j=5), third round (i=230, j=3). Of course, the real thing is a couple hundred pairs.
>
> -Raymond
>
> preserve
> local tt=100
> qui foreach NN of numlist 3 5 3 4 {
> bsample `NN'
> local tt=`tt'+1
> replace team=`tt'
> save simteam_`tt'.dta, replace
> restore
> preserve
> }
>
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