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#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# A copy of the GNU General Public License is available at
# ../../COPYING
################################################################################
# FUNCTION: DESCRIPTION:
# rowCumsums,ANY Computes cumulated sums by row
# rowCumsums,timeSeries Computes cumulated sums by row for timeSeries
################################################################################
setMethod("rowCumsums", "ANY", function(x, na.rm = FALSE, ...)
{
# Transform:
if (!inherits(x, 'matrix'))
x <- as(x, "matrix")
if (na.rm)
x <- na.omit(x)
ans <- apply(x, 1, cumsum, ...)
# special treatment when x has one row because apply returns a vector
if (NCOL(x) > 1)
t(ans)
else
matrix(ans, ncol = 1, dimnames = dimnames(x))
})
# ------------------------------------------------------------------------------
setMethod("rowCumsums", "timeSeries", function(x, na.rm = FALSE, ...)
setDataPart(x, callGeneric(getDataPart(x), na.rm = na.rm, ...)))
################################################################################
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