On 25-Nov-04 John wrote: > Hello R-users, > > I have a symmetric matrix of numerical values and I > want to obtain those values in the upper or lower > triangle of the matrix in a vector. I tried to do the > job by using two for-loops but it doens't seem to be a > clever way, and I'd like to know a more efficient code > for a large matrix of thousands of rows and columns.
The two functions uuper.tri and lower.tri do just this job! Best wishes, Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <[EMAIL PROTECTED]> Fax-to-email: +44 (0)870 094 0861 [NB: New number!] Date: 25-Nov-04 Time: 18:54:20 ------------------------------ XFMail ------------------------------ ______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
