On 29/09/2009 4:54 PM, Rolf Turner wrote:
On 30/09/2009, at 9:32 AM, milton ruser wrote:
x=runif(12)
y=runif(12)
w=runif(12)
mydf<-data.frame(cbind(x,y,w))
head(mydf)
mydf<-subset(mydf, select=c(-x,-w))
head(mydf)
But this doesn't work if NAME1 and NAME2 are ***names***,
as the terminology would apply. And that is precisely the
situation in which one would wish to apply this sort of
technique.
I'm not completely sure what you're getting at here, but I think milton
is right in this example. (The original one was missing the "c".)
subset() is weird, it does very strange stuff in the select argument.
Duncan Murdoch
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