[R] Deleting a column in a dataframe by name

Duncan Murdoch murdoch at stats.uwo.ca
Tue Sep 29 23:25:51 CEST 2009

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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