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### =========================================================================
### SparseMatrix crossprod(), tcrossprod(), and %*%
### -------------------------------------------------------------------------
###
### - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
### crossprod()
###
### Only input types "double" and "integer" are supported at the moment.
### TODO: Add "complex" and "logical" later.
.check_crossprod_input_type <- function(type)
{
#supported_types <- c("double", "integer", "complex", "logical")
supported_types <- c("double", "integer")
if (!(type %in% supported_types))
stop(wmsg("input objects must be of type() \"double\" or \"integer\""))
#"\"integer\", \"complex\", or \"logical\""))
}
.crossprod2_SparseMatrix_matrix <- function(x, y, transpose.y=FALSE)
{
if (is(x, "SVT_SparseMatrix")) {
check_svt_version(x)
} else {
x <- as(x, "SVT_SparseMatrix")
}
stopifnot(is.matrix(y), isTRUEorFALSE(transpose.y))
if (transpose.y) {
if (nrow(x) != ncol(y))
stop(wmsg("non-conformable arguments"))
ans_dim <- c(ncol(x), nrow(y))
ans_dimnames <- list(colnames(x), rownames(y))
} else {
if (nrow(x) != nrow(y))
stop(wmsg("non-conformable arguments"))
ans_dim <- c(ncol(x), ncol(y))
ans_dimnames <- list(colnames(x), colnames(y))
}
if (type(x) == type(y)) {
.check_crossprod_input_type(type(x))
} else {
xy_type <- type(c(vector(type(x)), vector(type(y))))
.check_crossprod_input_type(xy_type)
type(x) <- type(y) <- xy_type
}
ans_type <- "double"
ans_dimnames <- S4Arrays:::simplify_NULL_dimnames(ans_dimnames)
SparseArray.Call("C_crossprod2_SVT_mat",
x@dim, x@type, x@SVT, y, transpose.y,
ans_type, ans_dimnames)
}
.crossprod2_matrix_SparseMatrix <- function(x, y, transpose.x=FALSE)
{
if (is(y, "SVT_SparseMatrix")) {
check_svt_version(y)
} else {
y <- as(y, "SVT_SparseMatrix")
}
stopifnot(is.matrix(x), isTRUEorFALSE(transpose.x))
if (transpose.x) {
if (ncol(x) != nrow(y))
stop(wmsg("non-conformable arguments"))
ans_dim <- c(nrow(x), ncol(y))
ans_dimnames <- list(rownames(x), colnames(y))
} else {
if (nrow(x) != nrow(y))
stop(wmsg("non-conformable arguments"))
ans_dim <- c(ncol(x), ncol(y))
ans_dimnames <- list(colnames(x), colnames(y))
}
if (type(x) == type(y)) {
.check_crossprod_input_type(type(x))
} else {
xy_type <- type(c(vector(type(x)), vector(type(y))))
.check_crossprod_input_type(xy_type)
type(x) <- type(y) <- xy_type
}
ans_type <- "double"
ans_dimnames <- S4Arrays:::simplify_NULL_dimnames(ans_dimnames)
SparseArray.Call("C_crossprod2_mat_SVT",
x, y@dim, y@type, y@SVT, transpose.x,
ans_type, ans_dimnames)
}
.crossprod2_SparseMatrix_SparseMatrix <- function(x, y=NULL)
{
if (is(x, "SVT_SparseMatrix")) {
check_svt_version(x)
} else {
x <- as(x, "SVT_SparseMatrix")
}
if (is(y, "SVT_SparseMatrix")) {
check_svt_version(y)
} else {
y <- as(y, "SVT_SparseMatrix")
}
if (nrow(x) != nrow(y))
stop(wmsg("non-conformable arguments"))
ans_dim <- c(ncol(x), ncol(y))
if (type(x) == type(y)) {
.check_crossprod_input_type(type(x))
} else {
xy_type <- type(c(vector(type(x)), vector(type(y))))
.check_crossprod_input_type(xy_type)
type(x) <- type(y) <- xy_type
}
ans_type <- "double"
ans_dimnames <- list(colnames(x), colnames(y))
ans_dimnames <- S4Arrays:::simplify_NULL_dimnames(ans_dimnames)
SparseArray.Call("C_crossprod2_SVT_SVT",
x@dim, x@type, x@SVT, y@dim, y@type, y@SVT,
ans_type, ans_dimnames)
}
.crossprod1_SparseMatrix <- function(x, y=NULL)
{
if (is(x, "SVT_SparseMatrix")) {
check_svt_version(x)
} else {
x <- as(x, "SVT_SparseMatrix")
}
stopifnot(is.null(y))
ans_dim <- c(ncol(x), ncol(x))
.check_crossprod_input_type(type(x))
ans_type <- "double"
ans_dimnames <- list(colnames(x), colnames(x))
ans_dimnames <- S4Arrays:::simplify_NULL_dimnames(ans_dimnames)
SparseArray.Call("C_crossprod1_SVT",
x@dim, x@type, x@SVT,
ans_type, ans_dimnames)
}
setMethod("crossprod", c("SparseMatrix", "matrix"),
.crossprod2_SparseMatrix_matrix
)
setMethod("crossprod", c("matrix", "SparseMatrix"),
.crossprod2_matrix_SparseMatrix
)
setMethod("crossprod", c("SparseMatrix", "SparseMatrix"),
.crossprod2_SparseMatrix_SparseMatrix
)
setMethod("crossprod", c("SparseMatrix", "ANY"),
function(x, y=NULL) .crossprod2_SparseMatrix_SparseMatrix(x, y)
)
setMethod("crossprod", c("ANY", "SparseMatrix"),
function(x, y=NULL) .crossprod2_SparseMatrix_SparseMatrix(x, y)
)
setMethod("crossprod", c("SparseMatrix", "missing"),
.crossprod1_SparseMatrix
)
### - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
### tcrossprod()
###
setMethod("tcrossprod", c("SparseMatrix", "matrix"),
function(x, y=NULL) .crossprod2_SparseMatrix_matrix(t(x), y,
transpose.y=TRUE)
)
setMethod("tcrossprod", c("matrix", "SparseMatrix"),
function(x, y=NULL) .crossprod2_matrix_SparseMatrix(x, t(y),
transpose.x=TRUE)
)
setMethod("tcrossprod", c("SparseMatrix", "SparseMatrix"),
function(x, y=NULL) .crossprod2_SparseMatrix_SparseMatrix(t(x), t(y))
)
setMethod("tcrossprod", c("SparseMatrix", "ANY"),
function(x, y=NULL) .crossprod2_SparseMatrix_SparseMatrix(t(x), t(y))
)
setMethod("tcrossprod", c("ANY", "SparseMatrix"),
function(x, y=NULL) .crossprod2_SparseMatrix_SparseMatrix(t(x), t(y))
)
setMethod("tcrossprod", c("SparseMatrix", "missing"),
function(x, y=NULL) .crossprod1_SparseMatrix(t(x))
)
### - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
### Matrix multiplication
###
setMethod("%*%", c("SparseMatrix", "matrix"),
function(x, y) .crossprod2_SparseMatrix_matrix(t(x), y)
)
setMethod("%*%", c("matrix", "SparseMatrix"),
function(x, y) .crossprod2_matrix_SparseMatrix(x, y, transpose.x=TRUE)
)
setMethod("%*%", c("SparseMatrix", "SparseMatrix"),
function(x, y) .crossprod2_SparseMatrix_SparseMatrix(t(x), y)
)
setMethod("%*%", c("SparseMatrix", "ANY"),
function(x, y) .crossprod2_SparseMatrix_SparseMatrix(t(x), y)
)
setMethod("%*%", c("ANY", "SparseMatrix"),
function(x, y) .crossprod2_SparseMatrix_SparseMatrix(t(x), y)
)
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