On Jul 2, 2013, at 8:11 PM, Sachinthaka Abeywardana wrote: > Hi all, > > I want to do the following: > > a=matrix(c(-1,-2,-3)) > a^(1/3) #get 3rd root of numbers[,1] > > [1,] NaN > [2,] NaN > [3,] NaN > > > All I get is NaNs, what is the proper way of doing this? Would like to > retain the fact that it is a matrix if possible (not a requirement > though).
?complex a=matrix(c(-1+0i,-2+0i,-3+0i)) David Winsemius Alameda, CA, USA ______________________________________________ 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.
