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MathPHP
Probability
Distribution
Continuous
Exponential
PHP Class MathPHP\Probability\Distribution\Continuous\Exponential
Inheritance:
extends
Continuous
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Open project: markrogoyski/math-php
Méthodes publiques
Méthode
Description
CDF
(
float
$x
,
float
$λ
) :
float
Cumulative distribution function
PDF
(
float
$x
,
float
$λ
) :
float
Probability density function
mean
(
float
$λ
) :
number
Mean of the distribution
Method Details
CDF()
public
static
méthode
f(x;λ) = 1 − ℯ^⁻λx x ≥ 0 = 0 x < 0
public
static
CDF
(
float
$x
,
float
$λ
) :
float
$x
float
the random variable
$λ
float
often called the rate parameter
Résultat
float
PDF()
public
static
méthode
f(x;λ) = λℯ^⁻λx x ≥ 0 = 0 x < 0
public
static
PDF
(
float
$x
,
float
$λ
) :
float
$x
float
the random variable
$λ
float
often called the rate parameter
Résultat
float
mean()
public
static
méthode
μ = λ⁻¹
public
static
mean
(
float
$λ
) :
number
$λ
float
often called the rate parameter
Résultat
number