Last data update: 2014.03.03
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R: Create a Block Diagonal Matrix by Repeating the Input
Create a Block Diagonal Matrix by Repeating the Input
Description
It creates a block diagonal matrix by repeating the input
matrix several times.
Usage
bdiagRep(x, times)
Arguments
x |
A numeric or character matrix (or values)
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times |
Number of times of x to be repeated
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Value
A numeric or character block diagonal matrix
Author(s)
Mike W.-L. Cheung <mikewlcheung@nus.edu.sg>
See Also
bdiagMat , matrix2bdiag
Examples
## Block diagonal matrix of numerics
bdiagRep( matrix(1:4,nrow=2,ncol=2), 2 )
# [,1] [,2] [,3] [,4]
# [1,] 1 3 0 0
# [2,] 2 4 0 0
# [3,] 0 0 1 3
# [4,] 0 0 2 4
## Block diagonal matrix of characters
bdiagRep( matrix(letters[1:4],nrow=2,ncol=2), 2 )
# [,1] [,2] [,3] [,4]
# [1,] "a" "c" "0" "0"
# [2,] "b" "d" "0" "0"
# [3,] "0" "0" "a" "c"
# [4,] "0" "0" "b" "d"
Results
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