search for: arthmet

What I want to do is simple. I''d like code that prints out the name of this month (January) the next month (February) and the one after that (March) I''ve been able to print this month: <% t = Time.now %> <%= t.strftime(" This Month is: %B") %> But I can''t figure out how to get the next months to print out! -- Posted via

Is there any way to "force" 0 * NA to be 0 instead of NA? For example, suppose I have a vector with some valid values, while other values are NA. If I matrix-pre-multiply this by a weight row vector, whose weights that correspond to the NAs are zero, the outcome will still be NA: x <- c(1, NA, 1) wt <- c(2, 0, 1) wt %*% x # NA Alberto Monteiro