I have two symmetric matrices, but of different dimensions. The entries are identified by specific labels some of which are shared by both matrices. I would like to sum the two matrices, but retain the union of the two. In other words, I want the result to be the same size as the larger of the two matrices, but with the entries that they share added together.
cbind() and rbind() don't work since the matrices are different sizes (symmetrically). Merge doesn't want to cooperate, although it might be because I can't understand the documentation. I tried the package "reshape" but didn't get very far with that either. I tried simply adding (+) them, but that was a stupid first try. Any help is appreciated! -- View this message in context: http://n4.nabble.com/Merging-Matrices-tp1605474p1605474.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
