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Re: st: random sample
Hi Nick:
I just saw your email in my "full" inbox. This is great.
Thank you Nick and all of you for the helpful responses. I really
appreciated!
Marcella
>>> n j cox <[email protected]> 10/26/2006 11:10 AM >>>
You can put an -if uniform() < 0.1- condition on (e.g.)
a -use- statement. This samples records (observations).
As, by chance, this should yield a bit less than 10%
about half the time, some people wanting exactly 10%
would increase that fraction and then deal with surplus observations
once they had been read in.
See
http://www.stata.com/support/faqs/stat/sampling.html
for more general discussion.
Nick
[email protected]
Marcella Sapun
I want to read randomly 10% of a data set that contains about 1
million
records and 100 variables. How do I do that in stata?
*
* For searches and help try:
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*
* 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/
