diag.block {simex}

Constructs a block diagonal matrix

Description

The function takes a list and constructs a block diagonal matrix with the elements of the list on the diagonal. If d is not a list then d will be repeated n times and written on the diagonal (a wrapper for kronecker())

Usage

diag.block(d, n)

Arguments

d

a list of matrices or vectors, or a matrix or vector

n

number of repetitions

Value

returns a matrix with the elements of the list or the repetitions of the supplied matrix or vector on the diagonal.

Author(s)

Wolfgang Lederer, [e-mail]

See Also

diag, kronecker

Examples

a <- matrix(rep(1, 4), nrow = 2)
b <- matrix(rep(2, 6), nrow = 2)
e <- c(3, 3, 3, 3)
f <- t(e)
d <- list(a, b, e, f)
diag.block(d)
diag.block(a, 3)