Re: [R] sampling from data.frame

sorry for being a little bit imprecise, Chuck interpreted my question as desired. Armin __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and pr

Re: [R] sampling from data.frame

On Wed, 3 Dec 2008, axionator wrote: Hi all, I have a data frame with "clustered" rows as follows: Cu1 x1 y1 z1 ... Cu1 x2 y2 z2 ... Cu1 x3 y3 z3 ... # end of first cluster Cu1 Cu2 x4 y4 z4 ... Cu2 x5 y5 z5 Cu2 ... # end of second cluster Cu2 Cu3 ... ... "cluster"-size is 3 i

Re: [R] sampling from data.frame

Not sure exactly what you mean by 'sample' since you did not provide an example of the expected output, or input data that could be used. Here is an example of taking one sample from each cluster: > df <- data.frame(id=paste("C", rep(1:5, each=3), sep=''), data=1:15) > # sample 1 from each cluster

[R] sampling from data.frame

Hi all, I have a data frame with "clustered" rows as follows: Cu1 x1 y1 z1 ... Cu1 x2 y2 z2 ... Cu1 x3 y3 z3 ... # end of first cluster Cu1 Cu2 x4 y4 z4 ... Cu2 x5 y5 z5 Cu2 ... # end of second cluster Cu2 Cu3 ... ... "cluster"-size is 3 in the example above (rows making up a cl