Hi everybody

I would like to know if there is a way for sub-setting big data.frame of
different chromosomes into separate data.frames for the specific
chromosomes.

I have the results of a microarray experiment in one huge excel sheet. one
of the columns is df$Chromosomes
I know I can sub-set it using
for example:
data_9=subset(data,Chromosome=="9")
But I would like to know (probably for the next analysis) if there is a way
of automating it. Can I, with one command separate my big file into 24
separate data frames (chromosomes 1-22, X,Y)?

Thanks
Assa

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