stats alternatives and similar packages
Based on the "Math" category.
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vector
An efficient implementation of Intindexed arrays (both mutable and immutable), with a powerful loop optimisation framework . 
statistics
A fast, high quality library for computing with statistics in Haskell. 
HerbiePlugin
GHC plugin that improves Haskell code's numerical stability 
hgeometry
HGeometry is a library for computing with geometric objects in Haskell. It defines basic geometric types and primitives, and it implements some geometric data structures and algorithms. The main two focusses are: (1) Strong type safety, and (2) implementations of geometric algorithms and data structures that have good asymptotic running time guarantees. 
computationalalgebra
GeneralPurpose Computer Algebra System as an EDSL in Haskell 
dimensional
Dimensional library variant built on Data Kinds, Closed Type Families, TypeNats (GHC 7.8+). 
mwcrandom
A very fast Haskell library for generating high quality pseudorandom numbers. 
numhask
A haskell numeric prelude, providing a clean structure for numbers and operations that combine them. 
cf
"Exact" real arithmetic for Haskell using continued fractions (Not formally proven correct) 
optimization
Some numerical optimization methods implemented in Haskell 
poly
Fast polynomial arithmetic in Haskell (dense and sparse, univariate and multivariate, usual and Laurent) 
safedecimal
Safe and very efficient arithmetic operations on fixed decimal point numbers 
equationalreasoning
Agdastyle equational reasoning in Haskell 
eigen
Haskel binding for Eigen library. Eigen is a C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms. 
diagramssolve
Miscellaneous solver code for diagrams (lowdegree polynomials, tridiagonal matrices)
OPS  Build and Run Open Source Unikernels
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README
stats
command line statistics
Feed in statistics on standard input and see number of samples, average, minimum, 1st quartile, median, 3rd quartile and maximum. Input can be prefixed with a common string, only the last word needs to be a number value. Statistics will be computed for each run of lines with equal prefixes.
Some statistics about the byte length of the first 10,000 words in the dictionary:
> head n 10000 /usr/share/dict/words  while read line; do echo $line  wc c; done  stats
Samples: 10000.0
Average: 8.63739999999999
Minimum: 1.0
25th percentile: 7.0
50th percentile: 9.0
75th percentile: 10.0
90th percentile: 12.0
99th percentile: 14.0
99.9th percentile: 17.0
Maximum: 23.0
Some statistics about the number of $2 bills printed per year from 19802012:
> curl silent "https://explore.data.gov/resource/annualproductionfiguresofunitedstatescurrency.csv" \
 perl pe 's/(FY \d{4})/"$1"/g;sN/A"0"g' \
 awk F'","^""$' '{sub("^\"","")} {print $3}' \
 grep v '^$' \
 perl pe 's/,//g' \
 stats
Samples: 33.0
Average: 3.4133333333333336e7
Minimum: 0.0
25th percentile: 0.0
50th percentile: 0.0
75th percentile: 0.0
90th percentile: 1.1776000000000001e8
99th percentile: 4.0447999999999994e8
99.9th percentile: 4.78208e8
Maximum: 4.864e8