Peace on your heart... it is still Tuesday, and Friday is away... :-)


On Tue, Sep 29, 2009 at 4:54 PM, Rolf Turner <r.tur...@auckland.ac.nz>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.
>
>                cheers,
>
>                        Rolf Turner
>
> On Tue, Sep 29, 2009 at 4:27 PM, Rolf Turner <r.tur...@auckland.ac.nz>
>> wrote:
>>
>> On 30/09/2009, at 9:15 AM, milton ruser wrote:
>>
>> May be this:
>>
>> FRAME   <- FRAME[-c(NAME1, NAME2)]
>> or
>> FRAME<- subset(FRAME, select=(-NAME1, -NAME2))
>>
>> This is ridiculous advice.  Try things out before you suggest them.
>>
>>       cheers,
>>
>>               Rolf Turner
>>
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