repmat {MESS} | R Documentation |
Fast replication of a matrix
Description
Fast generation of a matrix by replicating a matrix row- and column-wise in a block-like fashion
Usage
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 <claus@rprimer.dk>
Examples
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
[Package MESS version 0.5.12 Index]