Last active
May 8, 2018 00:24
-
-
Save ericnovik/d4af8493e0824ab48ca7866fced0e187 to your computer and use it in GitHub Desktop.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| x <- matrix(rep(10, 12), nrow = 4) | |
| y <- c(2, 5, 10) | |
| div_matrix_by_vec <- function(mat, vec) { | |
| stopifnot(is.matrix(mat)) | |
| stopifnot(is.numeric(vec)) | |
| stopifnot(ncol(mat) == length(vec)) | |
| t(apply(mat, 1, function(x) x/vec)) | |
| } | |
| all.equal(div_matrix_by_vec(x, y), | |
| matrix(c(5,5,5,5,2,2,2,2,1,1,1,1), | |
| nrow = 4)) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment