Display a Two-Dimension Version of a Matrix of Vectors
Displays all values of a matrix of vectors by “unrolling” the object vertically or horizontally.
unroll(x, bycol = FALSE, drop = TRUE)
x |
a list of vectors with a |
bycol |
logical; whether to unroll horizontally
( |
drop |
logical; if |
unroll returns a matrix where elements of x
are concatenated (“unrolled”) by row (bycol = FALSE) or
by column (bycol = TRUE). NA is used to make
rows/columns of equal length.
Vectors and one dimensional arrays are coerced to row matrices.
A vector or matrix.
Vincent Goulet vincent.goulet@act.ulaval.ca and Louis-Philippe Pouliot
This function was originally written for use in
severity.portfolio.
x <- list(c(1:3), c(1:8), c(1:4), c(1:3)) (mat <- matrix(x, 2, 2)) unroll(mat) unroll(mat, bycol = TRUE) unroll(mat[1, ]) unroll(mat[1, ], drop = FALSE)
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