Nothing
big.crossprod <- function(x)
{
if (!is.big.matrix(x))
{
stop("object must be a big.matrix object")
}
.Call("crossprod_big", x@address)
}
big.colSums <- function(x)
{
if (!is.big.matrix(x))
{
stop("object must be a big.matrix object")
}
.Call("colsums_big", x@address)
}
big.colMax <- function(x)
{
if (!is.big.matrix(x))
{
stop("object must be a big.matrix object")
}
.Call("colmax_big", x@address)
}
big.colMin <- function(x)
{
if (!is.big.matrix(x))
{
stop("object must be a big.matrix object")
}
.Call("colmin_big", x@address)
}
#' big.matrix prod
#'
#' @param x big.matrix
#' @param y numeric vector
#' @docType methods
#' @importFrom methods new
#' @rdname extract-methods
setMethod("%*%",signature(x="big.matrix", y="vector"),
function(x, y)
{
if(dim(x)[2] != length(y)) stop("non-conformant matrices")
return( .Call("prod_vec_big", x@address, y) )
},
valueClass="vector"
)
#' big.matrix prod
#'
#' @docType methods
#' @rdname extract-methods
setMethod("%*%",signature(x="vector", y="big.matrix"),
function(x, y)
{
if(dim(y)[2] != length(x)) stop("non-conformant matrices")
return( .Call("prod_vec_big_right", x, y@address) )
},
valueClass="vector"
)
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