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# frozen_string_literal: true
module Mongo
module DriverBench
# A utility class for returning the list item at a given percentile
# value.
class Percentiles
# @return [ Array<Number> ] the sorted list of numbers to consider
attr_reader :list
# Create a new Percentiles object that encapsulates the given list of
# numbers.
#
# @param [ Array<Number> ] list the list of numbers to considier
def initialize(list)
@list = list.sort
end
# Finds and returns the element in the list that represents the given
# percentile value.
#
# @param [ Number ] percentile a number in the range [1,100]
#
# @return [ Number ] the element of the list for the given percentile.
def [](percentile)
i = (list.size * percentile / 100.0).ceil - 1
list[i]
end
end
end
end
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