PHP Class MathPHP\Probability\Distribution\Continuous\DiracDelta

Inheritance: extends Continuous
Show file Open project: markrogoyski/math-php

Public Methods

Method Description
CDF ( number $x ) : number Cumulative distribution function https://en.wikipedia.org/wiki/Heaviside_step_function
PDF ( number $x ) : number Probability density function
inverse ( $p, $params ) The inverse of the CDF function

Method Details

CDF() public static method

|\+∞ | δ(x) dx = 1 \|-∞
public static CDF ( number $x ) : number
$x number
return number

PDF() public static method

‾ | +∞, x = 0 δ(x) = < | 0, x ≠ 0 \_
public static PDF ( number $x ) : number
$x number
return number probability

inverse() public static method

The inverse of the CDF function
public static inverse ( $p, $params )