search for: mat_zeroless

...post. I am trying to use conditional formatting to select non-zero and non-NaN values from a matrix and pass them into another matrix. The problem is that I keep encountering an error message indicating the ":missing value where TRUE/FALSE needed " My code is as follows: ##Code Start mat_zeroless<-matrix(NA,5000,2000) #generating holding matrix ##Assume source matrix containing combination of values, NaNs and zeros## for (j in 1:5000) { for (k in 1:2000) { if(mat[j,k]!=0 & !is.NaN(mat[j,k])) {mat_zeroless[j,k]<-mat[j,k]} } } ##Code End Error in if (mat[j...

Hi everyone, I have a matrix that has a combination of zeros and NAs. When I perform certain calculations on the matrix, the zeros generate "Inf" values. Is there a way to either convert the zeros in the matrix to NAs, or only perform the calculations if not zero (i.e. like using something similar to an !all(is.na() construct)? Thanks, rcoder -- View this message in context: