Is it possible to swap columns around in a data frame using R?

r swap
baz picture baz · Apr 20, 2011 · Viewed 56k times · Source

I have three variables in a data frame and would like to swap the 4 columns around from 

"dam"   "piglet"   "fdate"   "ssire"

to

"piglet"   "ssire"   "dam"   "tdate"

Is there any way I can do the swapping using R?

Any help would be very much appreciated.

Baz

Answer

IRTFM picture IRTFM · Apr 20, 2011 
dfrm <- dfrm[c("piglet", "ssire", "dam", "tdate")]

OR:

dfrm <- dfrm[ , c("piglet", "ssire", "dam", "tdate")]

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