statistics-0.15.2.0: A library of statistical types, data, and functions

Copyright (c) 2017 Gregory W. Schwartz BSD3 gsch@mail.med.upenn.edu experimental portable None Haskell98

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.