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Contents
#!/usr/bin/env ruby -w
# encoding: UTF-8
#
# = Percentiles.rb -- PostRunner - Manage the data from your Garmin sport devices.
#
# Copyright (c) 2015 by Chris Schlaeger <cs@taskjuggler.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
module PostRunner
# This class can be used to partition sets according to a given percentile.
class Percentiles
# Create a Percentiles object for the given data set.
# @param set [Array] It must be an Array of tuples (2 element Array). The
# first element is the actual value, the second does not matter for
# the computation. It is usually a reference to the context of the
# value.
def initialize(set)
@set = set.sort { |e1, e2| e1[0] <=> e2[0] }
end
# @return [Array] Return the tuples that are within the given percentile.
# @param x [Float] Percentage value
def tp_x(x)
split_idx = (x / 100.0 * @set.size).to_i
@set[0..split_idx]
end
# @return [Array] Return the tuples that are not within the given
# percentile.
# @param x [Float] Percentage value
def not_tp_x(x)
split_idx = (x / 100.0 * @set.size).to_i
@set[split_idx..-1]
end
end
end
Version data entries
28 entries across 28 versions & 1 rubygems