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https://github.com/mstksg/bins
Aggregate continuous variables into discrete bins
https://github.com/mstksg/bins
Last synced: about 2 months ago
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Aggregate continuous variables into discrete bins
- Host: GitHub
- URL: https://github.com/mstksg/bins
- Owner: mstksg
- License: bsd-3-clause
- Created: 2018-08-17T23:55:17.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2019-10-08T03:03:18.000Z (about 5 years ago)
- Last Synced: 2024-10-12T00:55:13.532Z (2 months ago)
- Language: Haskell
- Size: 402 KB
- Stars: 6
- Watchers: 5
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
Awesome Lists containing this project
README
# [bins][hackage]
Bin continuous values into discrete containers in an interval, useful for
histograms.
[hackage]: https://hackage.haskell.org/package/bins
## Usage
```haskell
-- divide into 10 bins between 5 and 50, logarithmically
ghci> withBinner (logBS @10 5 50) $ \toBin -> do
print (toBin 1)
print (toBin 30)
print (binIx (toBin 30))
print (toBin 100)
```
```
Bin (-inf .. 5.0) -- 1 is outside of range
Bin [25.06 .. 31.55) -- 30 is inside bin enclosed by 25.06 and 31.55
PElem (Finite 7) -- 30 is in Bin #7 (indexed from 0)
Bin [50 .. -inf) -- 100 is outside of range
```
```haskell
-- Generate a histogram based on the bins from valules in a list
ghci> xs = [1..100] :: [Double]
ghci> withBinner (logBS @10 5 50) $ \toBin -> do
mapM_ (\(b, n) -> putStrLn (displayBinDouble 4 b ++ "\t" ++ show n))
. M.toList
$ binFreq toBin xs
```
```
(-inf .. 5.0000) 4
[5.0000 .. 6.2946) 2
[6.2946 .. 7.9245) 1
[7.9245 .. 9.9763) 2
[9.9763 .. 12.5594) 3
[12.5594 .. 15.8114) 3
[15.8114 .. 19.9054) 4
[19.9054 .. 25.0594) 6
[25.0594 .. 31.5479) 6
[31.5479 .. 39.7164) 8
[39.7164 .. 50.0000) 10
[50.0000 .. +inf) 51
```