There's a typo in my previous message. logvec should be invec. sorry.

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Leeds, Mark (IED)
Sent: Friday, August 24, 2007 5:12 PM
To: r-help@stat.math.ethz.ch
Subject: [R] Turning a logical vector into its indices without losing
itslength

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)

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}}

______________________________________________
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--------------------------------------------------------

This is not an offer (or solicitation of an offer) to buy/se...{{dropped}}

______________________________________________
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Reply via email to