Class Poisson

Class representing the Poisson distribution. Models the number of events in a fixed interval given a constant rate λ.

Index

Constructors

Accessors

Methods

cdf mean pmf sample variance

Constructors

constructor

new Poisson(lambda: number): Poisson
Parameters
- lambda: number
  Expected number of events (λ > 0)
Returns Poisson
- Defined in classes/Poisson/Poisson.ts:11

Accessors

lambda

get lambda(): number
Rate λ

Returns number
- Defined in classes/Poisson/Poisson.ts:19

Methods

cdf

cdf(k: number): number
Cumulative distribution function (CDF)
Parameters
- k: number
  Number of occurrences
Returns number
P(X ≤ k)
- Defined in classes/Poisson/Poisson.ts:40

mean

mean(): number
Mean of the distribution

Returns number
- Defined in classes/Poisson/Poisson.ts:53

pmf

pmf(k: number): number
Probability mass function (PMF)
Parameters
- k: number
  Number of occurrences (non-negative integer)
Returns number
P(X = k)
- Defined in classes/Poisson/Poisson.ts:28

sample

sample(): number
Generate a random sample using Knuth’s algorithm

Returns number
- Defined in classes/Poisson/Poisson.ts:67

variance

variance(): number
Variance of the distribution

Returns number
- Defined in classes/Poisson/Poisson.ts:60