Replacing string in matrix with zero
Hello, I doubt your Inf is a string, R does have the numeric value Inf (and -Inf), just try 1/0. As for the question, x <- matrix(1:9, ncol = 3) diag(x) <- 1/0 x x[x == Inf] <- 0 x Note that it could also be diag(x) <- 0 Hope this helps, Rui Barradas Em 14-11-2012 22:13, Nick Duncan escreveu:
Dear All, I have a matrix in which the diagonal has the string "Inf" in it. In order to be able to do cluster analysis this needs to be replaced with a Zero. I can do this by putting it into Excel, replacing and putting it back into R but it's tedious, and I am sure there is a simple way to do it in R. If you have the route to do this, it would be much appreciated. Best wishes Nick Duncan
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