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Create a block matrix with non-uniform block sizes.

Source: R/block_matrix.R
block_matrix.Rd

Creates a matrix with differing size blocks

Usage

block_matrix(x = NULL, b = NULL, byrow = FALSE, dimnames = NULL)

Arguments

x

Vector of numbers to identify each block.

b

Numeric value for the size of the blocks within the matrix ordered depending on byrow

byrow

Logical value. If FALSE (the default) the blocks are filled by columns, otherwise the blocks in the matrix are filled by rows.

dimnames

Character string of name attribute for the basis of the block matrix. If NULL a vector of the same length of b provides the basis of row and column names.#'

Value

Returns a matrix with block sizes determined by the b argument. Each block is filled with the same value taken from x.

See also

stripe_matrix

Author

Guy J. Abel

Examples

block_matrix(x = 1:16, b = c(2,3,4,2))
#>    A1 A2 B1 B2 B3 C1 C2 C3 C4 D1 D2
#> A1  1  1  5  5  5  9  9  9  9 13 13
#> A2  1  1  5  5  5  9  9  9  9 13 13
#> B1  2  2  6  6  6 10 10 10 10 14 14
#> B2  2  2  6  6  6 10 10 10 10 14 14
#> B3  2  2  6  6  6 10 10 10 10 14 14
#> C1  3  3  7  7  7 11 11 11 11 15 15
#> C2  3  3  7  7  7 11 11 11 11 15 15
#> C3  3  3  7  7  7 11 11 11 11 15 15
#> C4  3  3  7  7  7 11 11 11 11 15 15
#> D1  4  4  8  8  8 12 12 12 12 16 16
#> D2  4  4  8  8  8 12 12 12 12 16 16

block_matrix(x = 1:25, b = c(2,3,4,2,1))
#>    A1 A2 B1 B2 B3 C1 C2 C3 C4 D1 D2 E1
#> A1  1  1  6  6  6 11 11 11 11 16 16 21
#> A2  1  1  6  6  6 11 11 11 11 16 16 21
#> B1  2  2  7  7  7 12 12 12 12 17 17 22
#> B2  2  2  7  7  7 12 12 12 12 17 17 22
#> B3  2  2  7  7  7 12 12 12 12 17 17 22
#> C1  3  3  8  8  8 13 13 13 13 18 18 23
#> C2  3  3  8  8  8 13 13 13 13 18 18 23
#> C3  3  3  8  8  8 13 13 13 13 18 18 23
#> C4  3  3  8  8  8 13 13 13 13 18 18 23
#> D1  4  4  9  9  9 14 14 14 14 19 19 24
#> D2  4  4  9  9  9 14 14 14 14 19 19 24
#> E1  5  5 10 10 10 15 15 15 15 20 20 25