[R] How to use Subpopulation data?

[Bernardo Rangel Tura]

On Thu, 2009-10-01 at 13:34 +0000, KABELI MEFANE wrote:
> ## package sampling
> 
> stra=strata(sampleframe,c("type","value","rating"),size=c(20,80,200,300,400),
> method="srswor")
> sample.strat<-getdata(sampleframe,stra)
> 
> sample.strat
> 

Try:

stra<-strata(sampleframe,size=c(20,80,200,300,400),method="srswor")
sample.strat<-getdata(sampleframe,stra)
sample.strat

-- 
Bernardo Rangel Tura, M.D,MPH,Ph.D
National Institute of Cardiology
Brazil