staf alternatives and similar packages
Based on the "Math" category.
Alternatively, view staf alternatives based on common mentions on social networks and blogs.
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vector
An efficient implementation of Int-indexed arrays (both mutable and immutable), with a powerful loop optimisation framework . -
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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. -
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dimensional
Dimensional library variant built on Data Kinds, Closed Type Families, TypeNats (GHC 7.8+). -
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numhask
A haskell numeric prelude, providing a clean structure for numbers and operations that combine them. -
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poly
Fast polynomial arithmetic in Haskell (dense and sparse, univariate and multivariate, usual and Laurent) -
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eigen
Haskel binding for Eigen library. Eigen is a C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms. -
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InfluxDB – Built for High-Performance Time Series Workloads
* Code Quality Rankings and insights are calculated and provided by Lumnify.
They vary from L1 to L5 with "L5" being the highest.
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README
Stats.Foldable
A pure Haskell module that implements a safe interface to a set of statistical
computations for all Foldable containers. Folding (i.e. reducing or
crushing) is a great fit for statistics, where a full data set has to be
reduced to a single object that represents the set in a meaningful way.
Install
There are two standard ways of obtainig the module:
- by cloning the GitHub repository:
git clone https://github.com/lovasko/staf - by using the central Hackage server:
cabal install staf
API
All staf functions use the Maybe type to represent a failure (e.g. an empty
container provided as the input). All numerical arguments are limited to the
least-assuming typeclass. The module exports the following 7 functions:
Arithmetic mean
amean :: (F.Foldable f, Floating a)
=> f a -- ^ population
-> Maybe a -- ^ arithmetic mean
Minimum
min :: (F.Foldable f, Ord a)
=> f a -- ^ population
-> Maybe a -- ^ minimal value
Maximum
max :: (F.Foldable f, Ord a)
=> f a -- ^ population
-> Maybe a -- ^ maximal value
Variance
var :: (F.Foldable f, Floating a)
=> f a -- ^ population
-> Maybe a -- ^ variance
Standard deviation
stddev :: (F.Foldable f, Floating a)
=> f a -- ^ population
-> Maybe a -- ^ standard deviation
Covariance
covar :: (F.Foldable f, Floating a)
=> f a -- ^ first population
-> f a -- ^ second population
-> Maybe a -- ^ covariance
Pearson correlation
correl :: (F.Foldable f, Floating a)
=> f a -- ^ first population
-> f a -- ^ second population
-> Maybe a -- ^ correlation
Numerical stability
There is no current stability guarantee in any of the provided algorithms.
License
The staf module is licensed under the [2-clause BSD license](LICENSE). In
case that any other licensing is needed, feel free to contact the author.
Author
Daniel Lovasko [email protected]
*Note that all licence references and agreements mentioned in the staf README section above
are relevant to that project's source code only.