On Fri, 24 Aug 2007, Leeds, Mark (IED) wrote:
> I have the code below which gives me what I want for temp based on
> logvec but I was wondering if there was a shorter way ( i.e :
> a one liner ) without having to initialize temp to zeros. This is
> purely for learning purposes. Thanks.
>
> logvec <- c(TRUE,FALSE,FALSE,TRUE,FALSE,FALSE,TRUE,FALSE)
R> logvec[logvec] <- which(logvec)
R> logvec
[1] 1 0 0 4 0 0 7 0
hth,
Z
> temp<-numeric(length(invec))
> temp[invec]<-which(invec)
> temp
>
> [1] 1 0 0 4 0 0 7 0
>
> obviously, the code below doesn't work.
>
> temp <- which(invec)
> > temp
> [1] 1 4 7
> --------------------------------------------------------
>
> This is not an offer (or solicitation of an offer) to buy/se...{{dropped}}
>
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
>
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