### ============================================================================
### colMads
###
### ----------------------------------------------------------------------------
### Non-exported methods
###
.DelayedMatrix_block_colMads <- function(x, rows = NULL, cols = NULL,
center = NULL, constant = 1.4826,
na.rm = FALSE, ..., useNames = TRUE) {
# Check input type
stopifnot(is(x, "DelayedMatrix"))
DelayedArray:::.get_ans_type(x, must.be.numeric = TRUE)
# Check, normalize, and subset 'center'
center <- normarg_center_and_subset(center, ncol(x), "ncol(x)", cols)
# Subset 'x'
x <- ..subset(x, rows, cols)
# Compute result
val <- colblock_APPLY(x = x,
FUN = .colMads_internal,
center = center,
constant = constant,
na.rm = na.rm,
...,
useNames = useNames)
if (length(val) == 0L) {
return(numeric(ncol(x)))
}
unlist(val, recursive = FALSE, use.names = useNames)
}
#' @importFrom DelayedArray currentViewport makeNindexFromArrayViewport
.colMads_internal <- function(x, center, ..., useNames = TRUE) {
if (!is.null(center) && length(center) != 1L) {
block.env <- parent.frame(2)
vp <- currentViewport(block.env)
subset <- makeNindexFromArrayViewport(vp)[[2]]
if (!is.null(subset)) {
center <- center[as.integer(subset)]
}
}
colMads(x, center = center, ..., useNames = useNames)
}
### ----------------------------------------------------------------------------
### Exported methods
###
# ------------------------------------------------------------------------------
# General method
#
#' @inherit MatrixGenerics::colMads
#' @importMethodsFrom DelayedArray seed
#' @rdname colMads
#' @template common_params
#' @template lowercase_x
#' @export
#' @template example_dm_df
#' @template example_dm_S4VectorsDF
#' @author Peter Hickey
#' @examples
#'
#' colMads(dm_df)
setMethod("colMads", "DelayedMatrix",
function(x, rows = NULL, cols = NULL, center = NULL,
constant = 1.4826, na.rm = FALSE,
force_block_processing = FALSE, ..., useNames = TRUE) {
.smart_seed_dispatcher(x, generic = MatrixGenerics::colMads,
blockfun = .DelayedMatrix_block_colMads,
force_block_processing = force_block_processing,
rows = rows,
cols = cols,
center = center,
constant = constant,
na.rm = na.rm,
...,
useNames = useNames)
}
)
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