statistics-0.16.1.2: A library of statistical types, data, and functions
Copyright (c) 2017 Gregory W. Schwartz
License BSD3
Maintainer gsch@mail.med.upenn.edu
Stability experimental
Portability portable
Safe Haskell None
Language Haskell2010

Statistics.Sample.Normalize

Description

Functions for normalizing samples.

Synopsis

Documentation

standardize :: Vector v Double => v Double -> Maybe (v Double ) Source #

O(n) Normalize a sample using standard scores:

\[ z = \frac{x - \mu}{\sigma} \]

Where μ is sample mean and σ is standard deviation computed from unbiased variance estimation. If sample to small to compute σ or it's equal to 0 Nothing is returned.