Re: [R] Filling a logical matrices with values

Sorry, I noticed my previous code does not work if a column has all NAs. Try this instead: dat - matrix(as.logical(sample(T:F, 30, T)),5,6) colnames(dat) - letters[1:6] rownames(dat) - paste(letters[1:5],1:5, sep=) dat1 - matrix(NA,5,6) colnames(dat1) - colnames(dat) rownames(dat1) -

Re: [R] Filling a logical matrices with values

If I understand your question, this may work for you: dat - matrix(as.logical(sample(T:F, 30, T)),5,6) colnames(dat) - letters[1:6] rownames(dat) - paste(letters[1:5],1:5, sep=) dat1 - matrix(NA,5,6) colnames(dat1) - colnames(dat) rownames(dat1) - rownames(dat) dat1[dat] -

[R] Filling a logical matrices with values

Hello !! I have this problem: A matrix on True/False and as many numerical vectors as columns, but of different length. What I 'd like to get is this: set.seed(12) dat - as.data.frame(matrix(as.logical(sample(T:F, 30, T)),5,6)) colnames(dat) - letters[1:6] rownames(dat) -