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32254
2010 Jan 24
2
fetching columns from another file
Hi! All,
I am trying to fetch rows from a data frame which matches to first 2
columns of another data frame. Here is the example what I am trying to
do:
> ptable=read.table(file="All.txt",header=T,sep="\t")
> ptable=as.matrix(ptable)
> dim(ptable)
[1] 9275 6
> head(ptable)
Gene1 Gene2 PCC PCC3 PCC23 PCC123
[1,]