Sha256: 16b4ba4978cbc827b2adc5bee55f89f563ee654867c6e957fd1ead8abd6a9e85
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Size: 935 Bytes
Versions: 20
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Stored size: 935 Bytes
Contents
# frozen_string_literal: true
module Nanoc::Telemetry
class Summary
class EmptySummaryError < StandardError
def message
'Cannot calculate quantile for empty summary'
end
end
def initialize
@values = []
end
def observe(value)
@values << value
@sorted_values = nil
end
def count
@values.size
end
def sum
raise EmptySummaryError if @values.empty?
@values.reduce(:+)
end
def avg
sum / count
end
def min
quantile(0.0)
end
def max
quantile(1.0)
end
def quantile(fraction)
raise EmptySummaryError if @values.empty?
target = (@values.size - 1) * fraction.to_f
interp = target % 1.0
sorted_values[target.floor] * (1.0 - interp) + sorted_values[target.ceil] * interp
end
private
def sorted_values
@sorted_values ||= @values.sort
end
end
end
Version data entries
20 entries across 20 versions & 1 rubygems