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RE: st: RE: input statement inside a while loop
From
"Nick Cox" <[email protected]>
To
<[email protected]>
Subject
RE: st: RE: input statement inside a while loop
Date
Thu, 8 Jul 2010 18:12:17 +0100
Good. But the problem you outline is no problem: as long as you -save- appropriate results you can -use- them later. (Same applies to other ways of saving and reading.)
Also, you could store them in macros, matrices, characteristics, etc.
Nick
[email protected]
Ricardo Ovaldia, MS
Thank you Nick. Your first option is just what I needed. The second option will not work for me because the data in the new data set will contain output generated earlier in the loop.
--- On Thu, 7/8/10, Nick Cox <[email protected]> wrote:
> This has I think arisen recently but
> I am not going to try to search the
> archives for "end".
>
> I guess you're right: -end- in a do-file or programming
> context is just
> hopelessly ambiguous.
>
> If this example is close to the problem, then
>
> set obs 2
> gen lines1 = cond(_n == 1, "rec", "dat")
>
> is a way of avoiding
>
> input str5 lines1
>
> "rec"
>
> "dat"
> end
>
> Another way is just to store that data in a separate
> dataset and read it
> in each time.
>
> Ricardo Ovaldia, MS
>
> I am trying to create a data set inside a -while- loop but
> it keeps
> failing. I think that the -end- confuses Stata.
> Here is a simplified version:
> -----------------------------
> local i 1
> while `i'<=10 {
> clear
> set obs 100
> gen x=uniform()
> sum x
> clear
> input str5 lines1
>
> "rec"
>
> "dat"
> end
>
> save temp`i', replace
> local i=`i'+1
> }
> -------------------------------------
>
>
> output:
> . local i 1
>
> . while `i'<=10 {
> 2.
> clear
> 3.
> set obs 100
> 4.
> gen x=uniform()
> 5.
> sum x
> 6.
> clear
> 7.
> input str5 lines1
> 8.
> "rec"
> 9.
> "dat"
> 10.
> end
> --Break--
> r(1);
>
> end of do-file
>
>
>
> If I take out the -input- command it works. Any ideas?
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