Re: st: Sample command question

["Michael Blasnik" <michael.blasnik@verizon.net>]

...
Why not just create one big dataset and then pull it apart at the end:

> forval x =1910/2000 {
> local i=1
> while `i' <=10 {
> use `x'
>
> sample 5, count
gen dataset=`x'
gen samplenum=`i'
if `x'==1910 & `i'==1 save mysample
else append using mysample

* delete this line> save sample`x'`i', replace
> local i= `i' +1
> }
> }
* now you have mysample with vars dataset, samplenum, and the variable of 
interest.  You could save pieces however you want using another loop...

Michael Blasnik

----- Original Message ----- 
From: "David McClintick" <mcclin47@msu.edu>
To: <statalist@hsphsun2.harvard.edu>
Sent: Tuesday, October 31, 2006 12:46 AM
Subject: RE: st: Sample command question



> I apologize for not properly explaining what I intend to do. Hopefully
> this time I will clear up the confusion.
>
> I have 91 datasets, named 1910 to 2000 in increments of 1. Each dataset
> has 1 variable. What I wish to do, is use stata to take a 5 observation
> sample from each dataset, without replacement, and then do so 10 times
> so that I have 10 random samples of 5 observations from each complete
> dataset. Now, I realize that the way I have it set up, Stata would save
> the results in 910 different new datasets. This is where things become
> more difficult. If possible, I would like the results to be saved in a
> single dataset for each original dataset, storing each random sample as
> a different variable. So, instead of 910 new datasets, I would have 91
> datasets with 10 variables in each dataset, and each variable containing
> 5 observations.
>
> The code I have now works with respect to creating the samples, it just
> needs help on how to save the samples in a more concise form.
>
> forval x =1910/2000 {
> local i=1
> while `i' <=10 {
> use `x'
>
> sample 5, count
> save sample`x'`i', replace
> local i= `i' +1
> }
> }
*
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