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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: COLUMN STATISTICS IN FUTILITIES:
# rank,timeSeries Returns sample ranks of a 'timeSeries' object
################################################################################
setMethod("rank", "timeSeries",
function(x, na.last = TRUE,
ties.method = eval(formals(rank)$ties.method))
{
# Description:
# Returns the sample ranks of the values in a 'timeSeries'
# Arguments:
# x - an object of class 'timeSeries'
# ties.method -
# "average", replaces them by their mean,
# "first" method results in a permutation with increasing
# values at each index set of ties.
# "random" method puts these in random order whereas the
# default,
# "max" and "min" replaces them by their maximum and minimum
# respectively, the latter being the typical sports ranking.
# Note:
# Ties (i.e., equal values) and missing values can be handled
# in several ways.
# FUNCION:
# Return Value:
apply(x, 2, rank, na.last = na.last, ties.method = ties.method)
}
)
################################################################################
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