[R] Quick question!

[Jens Nieschulze]

On Wed, 31 Oct 2001, Isabel Jones wrote:

> Thanks very much to all who answered my question
> yesterday on loops.
> 
> Just a further quick question:
> 
> If I have this:
> 
> for(i in 1:n) {
>   subset <- data[which(data$id==i),]
> 
> which returns the rows where I have the variable ID=1,
> how can I tell the same statement to return just
> column Y where ID=i?
> 
> I have tried this
> 
> for(i in 1:n) {
>   subset <- data[which(data$id==i),data$Y]

 for(i in 1:n) {
   subset <- data[which(data$id==i),"Y"]

maybe?
> 
> but it doesn't work
> 
> Thanks again
> Isabel
> 

***********************************************************************
Jens Nieschulze


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