On Thu, Feb 25, 2010 at 4:10 AM, Heym, Peter-Paul <ph...@ipb-halle.de> wrote:
> this works fine but it is very slow (since A and B can be very large and I > have to repeat this about 5000 times). I would like to make this faster using > e.g. apply or lapply but I didn't get it work using these methods. Does > anybody know an EFFICIENT or FAST way extract the values from L using the > values from A and B? Instead of L[[A[i]]][B[i]], try L[A][B] - Tom ______________________________________________ R-help@r-project.org 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.