[R] Creating a sequence of variables in a data frame
Jason Turner
jasont at indigoindustrial.co.nz
Mon Mar 10 10:04:25 CET 2003
On Mon, Mar 10, 2003 at 08:14:54AM +0000, ripley at stats.ox.ac.uk wrote:
> On Mon, 10 Mar 2003, Jason Turner wrote:
> > for(jj in 1:5) {
> > foo[[jj + 1]] [which(foo$old == jj)] <- TRUE #note - same offset
> > #from above
> > }
>
> You don't need the which(), as logical indices are just as good.
(sound of forehead slapping). Somebody spiked my coffee with decaf.
> library(nnet)
> ?class.ind
Nice.
Many thanks, for the pointer above, and for nnet. Both are very much
appreciated.
Jason
--
Indigo Industrial Controls Ltd.
64-21-343-545
jasont at indigoindustrial.co.nz
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