Sha256: dab6b822c3da005faf6337c5512545a87974977fd500a97453529e453cd34597
Contents?: true
Size: 613 Bytes
Versions: 19
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Stored size: 613 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
19 entries across 19 versions & 1 rubygems