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Hello, This should be a fairly simple question. I have 2 matrix's and I want to get the difference between them and then remove the difference from one of them. So A vs B, anything I see in B I want to remove from A, and then print out the final matrix. I have some code here but at the moment I'm getting stuck on the creating a matrix, cbind problems. clean <- function (A, B,

I think my software updates are not working. I know a Firefox update was announced yesterday but when I try sudo yum update I get a message saying that no packages are marked for update. I tried sudo yum clean all but I still get the same response. Any suggestions? Joe