repmat: Fast replication of a matrix

Description Usage Arguments Value Author(s) Examples

View source: R/RcppExports.R

Description

Fast generation of a matrix by replicating a matrix row- and column-wise in a block-like fashion

Usage

1
repmat(x, nrow = 1L, ncol = 1L)

Arguments

x

A matrix with dimensions r*c.

nrow

An integer giving the number of times the matrix is replicated row-wise

ncol

An integer giving the number of times the matrix is replicated column-wise

Value

A matrix with dimensions (r*nrow) x (c*ncol)

Author(s)

Claus Ekstrom <[email protected]>

Examples

1
2
3
m <- matrix(1:6, ncol=3)
repmat(m, 2)     # Stack two copies of m on top of each other
repmat(m, 2, 3)  # Replicate m with two copies on top and three copies side-by-side 

MESS documentation built on May 29, 2017, 2:39 p.m.