Sha256: 5b15ceecbb9483367dcb9b030085bbbf688386b6d2350c56305c3abf459dff51
Contents?: true
Size: 622 Bytes
Versions: 9
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Stored size: 622 Bytes
Contents
require "forwardable"
module MetricFu
class Ranking
extend Forwardable
def initialize
@items_to_score = {}
end
def top
sorted_items
end
def percentile(item)
index = sorted_items.index(item)
worse_item_count = (length - (index + 1))
worse_item_count.to_f / length
end
def_delegator :@items_to_score, :has_key?, :scored?
def_delegators :@items_to_score, :[], :[]=, :length, :each, :delete, :fetch
private
def sorted_items
@sorted_items ||= @items_to_score.sort_by { |_item, score| -score }.map { |item, _score| item }
end
end
end
Version data entries
9 entries across 9 versions & 3 rubygems