R/rowMultiply.R

Defines functions rowMultiply

Documented in rowMultiply

#' A function to efficiently row multiply a matrix and a vector
#'
#' @details Memory intensive but that does not matter with given matrix sizes
#'
#' @param matrix a numeric matrix of dimension a-by-b
#' @param vector a numeric vector of length b
#'
#' t(t(matrix)*vector) but then faster
#'
#' @return a matrix, row multplied by the vector
rowMultiply = function(matrix, vector) {
    matrix * rep(vector, rep(nrow(matrix),
                             length(vector)))
}
CenterForStatistics-UGent/combi documentation built on Aug. 22, 2023, 11:02 p.m.