On Wed, Feb 1, 2012 at 11:18 PM, Elena Guijarro
wrote:
> Dear all,
>
> I have to select 122 stratified random samples from a population of
> >3900 cells. I have 41 strata and I have to draw a different number of
> samples from them(between 2 and 8).
>
> I have tried to apply the funtion strata f
Dear all,
I have to select 122 stratified random samples from a population of
>3900 cells. I have 41 strata and I have to draw a different number of
samples from them(between 2 and 8).
I have tried to apply the funtion strata following the instruction in
the manual:
strata(dataframe, strata
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