Nothing
.rowsum <- function(x, group, reorder=TRUE, na.rm = FALSE, ...) {
x <- makeNd (x, 2)
old <- attributes (x)
x <- base::rowsum (x, group = group, reorder = reorder, na.rm = na.rm)
old$old [[1]]$dim [1] <- nrow (x)
old$old [[1]]$dimnames [1] <- list (rownames (x))
mostattributes (x) <- old
x <- restoredim (x)
x
}
.test (.rowsum) <- function (){
rowsum (v, seq_along (v))
}
##' rowsum for arrays
##'
##' This function extends the base function \code{\link[base]{rowsum}}.
##' @param x array to be \code{rowsum}med
##' @param group grouping variable (integer or factor) indicating groups of samples. \code{}
##' @param reorder should the groups be ordered? see \code{\link[base]{rowsum}}
##' @param na.rm shoud \code{NA}s be removed?
##' @param ... ignored
##' @return like \code{\link[base]{rowsum}}, but further dimensions of the array are preserved.
##' @author Claudia Beleites
##' @seealso \code{\link[base]{rowsum}}
##' @keywords array algebra arith
##' @docType methods
##' @rdname rowsum
##' @export
setMethod ("rowsum", signature = signature (x = "array"), .rowsum)
#TODO: test, examples
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