add_torows {MESS}

Fast addition of vector to each row of matrix

Description

Fast addition of vector to each row of a matrix. This corresponds to t(t(x) + v)

Usage

add_torows(x, v)

Arguments

x

A matrix with dimensions n*k.

v

A vector of length k.

Value

A matrix of dimension n*k where v is added to each row of x

Author(s)

Claus Ekstrom <[e-mail]>

Examples

A <- matrix(1:12, ncol=3)
B <- c(1, 2, 3)

add_torows(A, B)