Sha256: 0acec6a08131c1ca10f3cc23b41307313ee31fda1fce6b9aea59e418af1fff3c
Contents?: true
Size: 542 Bytes
Versions: 15
Compression:
Stored size: 542 Bytes
Contents
module PulseMeter
module Sensor
module Timelined
# Calculates n'th percentile in interval
class Percentile < ZSetBased
attr_reader :p_value
def initialize(name, options)
@p_value = assert_ranged_float!(options, :p, 0, 1)
super(name, options)
end
def calculate(key, count)
position = @p_value > 0 ? (@p_value * count).round - 1 : 0
el = redis.zrange(key, position, position)[0]
redis.zscore(key, el)
end
end
end
end
end
Version data entries
15 entries across 15 versions & 2 rubygems