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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:
# sort,timeSeries Sorts a 'timeSeries' object in time
################################################################################
sort.timeSeries <- function (x, decreasing = FALSE, ...)
{
# A function implemented by Diethelm Wuertz and Yohan Chalabi
# Description:
# Time sorts a 'timeSeries' object
# Arguments:
# x - a 'timeSeries' object.
# Value:
# Returns a time sorted object of class 'timeSeries'.
# FUNCTION:
# check if really necessary to sort x
## NB: is.unsorted can return NA
if (!decreasing && !isTRUE(is.unsorted(x@positions))) return(x)
if (length(x@positions)>0)
x[order(x@positions, decreasing = decreasing), ]
else
x
}
setMethod("sort", "timeSeries", function (x, decreasing = FALSE, ...)
sort.timeSeries(x, decreasing = decreasing, ...))
## # until UseMethod dispatches S4 methods in 'base' functions
## sort.timeSeries <- function(x, decreasing = FALSE, ...)
## .sort.timeSeries(x, decreasing = decreasing, ...)
################################################################################
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