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Computes the generalised kronecker product of two arrays, X and
Y.
kronecker.spam(X, Y, FUN = "*", make.dimnames = FALSE, ...)An array A with dimensions
dim(X) * dim(Y).
sparse matrix of class spam, a vector or a matrix.
sparse matrix of class spam, a vector or a matrix.
a function; it may be a quoted string. See details
Provide dimnames that are the product of the dimnames of
X and Y.
optional arguments to be passed to FUN.
Reinhard Furrer
The sparsity structure is determined by the ordinary
%x%. Hence, the result of kronecker(X, Y, FUN = "+") is
different depending on the input.
# Starting with non-spam objects, we get a spam matrix
kronecker.spam( diag(2), array(1:4, c(2, 2)))
kronecker( diag.spam(2), array(1:4, c(2, 2)))
# Notice the preservation of sparsity structure:
kronecker( diag.spam(2), array(1:4, c(2, 2)), FUN="+")
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