Popularity
3.1
Declining
Activity
0.0
Stable
4
2
2
Monthly Downloads: 4
Programming language: Haskell
License: GNU General Public License v3.0 only
Tags:
Math
Statistics
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README
hdr-histogram
Overview
A Haskell implementation of HdrHistogram. It allows storing counts of observed values within a range, while maintaining precision to a configurable number of significant digits.
Example
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE ScopedTypeVariables #-}
import Control.Monad (forM_)
import qualified Data.HdrHistogram as H
import qualified Data.HdrHistogram.Mutable as MH
vals :: [Int]
vals = undefined
-- Measure from 1ms to 1 hour, with 3 points of precision
type Config = H.Config 1 3600000 3
main :: IO ()
main = do
h <- MH.new
forM_ vals (MH.record h)
(frozen :: H.Histogram Config Int Int) <- MH.freeze h
print $ H.percentile frozen 50