https://github.com/cran/pracma
Tip revision: 579123307d89d9c83ce74568d6dfb56864019c93 authored by Hans W. Borchers on 05 February 2014, 00:00:00 UTC
version 1.6.4
version 1.6.4
Tip revision: 5791233
mldivide.R
##
## m l d i v i d e . R Matlab backslash Operator
##
mldivide <- function(A, B, pinv = TRUE) {
stopifnot(is.numeric(A) || is.complex(A),
is.numeric(B) || is.complex(B))
if (is.vector(A)) A <- as.matrix(A)
if (is.vector(B)) B <- as.matrix(B)
if (nrow(A) != nrow(B))
stop("Matrices 'A' and 'B' must have the same number of rows.")
if (pinv) {
pinv(t(A) %*% A) %*% t(A) %*% B
} else {
qr.solve(A, B)
}
}
mrdivide <- function(A, B, pinv = TRUE) {
stopifnot(is.numeric(A) || is.complex(A),
is.numeric(B) || is.complex(B))
if (is.vector(A)) A <- t(A)
if (is.vector(B)) B <- t(B)
if (ncol(A) != ncol(B))
stop("Matrices 'A' and 'B' must have the same number of columns.")
t(mldivide(t(B), t(A), pinv = pinv))
}