Selecting columns of a table (not consecutive)
Nolwenn LeMeur <nlemeur at fhcrc.org> writes:
George Papayiannis wrote:
Hi everyone, I have a table with 10 columns and many rows. I want to select the 3rd,4th and 10th column. If I wanted to select the 3rd and 4th it would be no problem. q3[ ,(3:4)] but how do I select the 10th along with it?
Try subset(q3, select=c(3,4,10))
Yes, but q3[,c(3:4,10)] works too. Notice that the index can be an arbitrary numeric vector.
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