Marcella:
if you have enough memory to read the data into memory than you can do:
use bigfile.dta, clear
keep if uniform() < .1
HTH,
Maarten
-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands
visiting adress:
Buitenveldertselaan 3 (Metropolitan), room Z434
+31 20 5986715
http://home.fsw.vu.nl/m.buis/
-----------------------------------------
--- Marcella Sapun wrote:
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?
*
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