Repeat matrix.

Create a big matrix by tiling given matrix m*n times in a rectangular grid. repmat resembles the matlab function of the same name.

repmat(x, m, n)

Arguments

x

a matrix
m

number of repetitions in dimension 1 (row multiply factor)
n

number of repetitions in dimension 2 (column multiply factor)

Value

A matrix of size '(m*r) x (n*c)', where 'r' ('c') represent the number of rows (columns) of 'x'.

Examples

x<-matrix(1:6,2)
x
#>      [,1] [,2] [,3]
#> [1,]    1    3    5
#> [2,]    2    4    6
repmat(x,2,3)
#>      [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9]
#> [1,]    1    3    5    1    3    5    1    3    5
#> [2,]    2    4    6    2    4    6    2    4    6
#> [3,]    1    3    5    1    3    5    1    3    5
#> [4,]    2    4    6    2    4    6    2    4    6