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2013 Apr 12
2
processing matrix equation derived from rows of two matrices
...r the first sample #check >tryvarb<-c(1,2,3,4,4,4,4) >var(tryvarb) ? #Now I try to get the variance for each sample (row) in tb, but neither of the following attempts work. >trybase <- apply(tb,1,function(i) ? >t(base79[,i])%*%(((val-rep(meansb79[i,],5))^2)/6)) #or >domatrix.f <- function(tb, meansb79) { ? > ? a <- nrow(A); b <- nrow(B); ? ? >C <- matrix(NA, nrow=a, ncol=b); ? ? >for (i in 1:a) ? ?? > for (j in 1:b) ? ? ?? > C[i,j] <- t(A[,i])%*%(((val-rep(B[i,],5))^2)/6) } >domatrix.f(tb, meansb79)