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BioPHP - Satndard Deviation

Original code submitted by joseba
Code bellow is covered by GNU GPL v2 license.

Description

Last change: 2010/10/18 17:04 | Edit description | Recent Changes | Original description

Calculates Standard Deviation of a serie of numbers

Code

Last change: 2010/10/18 17:04 | Edit Code | Recent Changes | Download | Original code

// This function will only process a one dimensional array
// requires function variance
function standard_deviation( $data ) {
  return Sqrt( variance($data) );
}