@types/d3-random

Version 3.0.3
Published 1 year ago
14.6 kB
No dependencies
MIT license

Install

npm i @types/d3-random

yarn add @types/d3-random

pnpm add @types/d3-random

Overview

TypeScript definitions for d3-random

Variables

variable randomBates

const randomBates: RandomBates;

variable randomBernoulli

const randomBernoulli: RandomBernoulli;

variable randomBeta

const randomBeta: RandomBeta;

variable randomBinomial

const randomBinomial: RandomBinomial;

variable randomCauchy

const randomCauchy: RandomCauchy;

variable randomExponential

const randomExponential: RandomExponential;

variable randomGamma

const randomGamma: RandomGamma;

variable randomGeometric

const randomGeometric: RandomGeometric;

variable randomInt

const randomInt: RandomInt;

variable randomIrwinHall

const randomIrwinHall: RandomIrwinHall;

variable randomLogistic

const randomLogistic: RandomLogistic;

variable randomLogNormal

const randomLogNormal: RandomLogNormal;

variable randomNormal

const randomNormal: RandomNormal;

variable randomPareto

const randomPareto: RandomPareto;

variable randomPoisson

const randomPoisson: RandomPoisson;

variable randomUniform

const randomUniform: RandomUniform;

variable randomWeibull

const randomWeibull: RandomWeibull;

Functions

function randomLcg

randomLcg: (seed?: number) => () => number;

Returns a linear congruential generator; this function can be called repeatedly to obtain pseudorandom values well-distributed on the interval [0,1) and with a long period (up to 1 billion numbers), similar to Math.random. A seed can be specified as a real number in the interval [0,1) or as any integer. In the latter case, only the lower 32 bits are considered. Two generators instanced with the same seed generate the same sequence, allowing to create reproducible pseudo-random experiments. If the seed is not specified, one is chosen using Math.random.
Parameter seed
A seed that is either a real number in the interval [0,1) or any integer.

Interfaces

interface RandomBates

interface RandomBates extends RandomNumberGenerationSource {}

A configurable random number generator for the Bates distribution.

call signature

(n: number): () => number;

Returns a function for generating random numbers with a Bates distribution with n independent variables. The case of fractional n is handled as with d3.randomIrwinHall, and d3.randomBates(0) is equivalent to d3.randomUniform().
Parameter n
Number of independent random variables to use.

interface RandomBernoulli

interface RandomBernoulli extends RandomNumberGenerationSource {}

A configurable random 0 or 1 generator according to a Bernoulli distribution.

call signature

(p: number): () => number;

Returns a function for generating either 1 or 0 according to a Bernoulli distribution with 1 being returned with success probability p and 0 with failure probability q = 1 - p. The value p is in the range [0, 1].
Parameter p
p

interface RandomBeta

interface RandomBeta extends RandomNumberGenerationSource {}

A configurable random number generator with a beta distribution.

call signature

(alpha: number, beta: number): () => number;

Returns a function for generating random numbers with a beta distribution with alpha and beta shape parameters, which must both be positive.
Parameter alpha
Shape parameter
Parameter beta
Shape paramter

interface RandomBinomial

interface RandomBinomial extends RandomNumberGenerationSource {}

A configurable random number generator with a binomial distribution.

call signature

(p: number): () => number;

Returns a function for generating numbers with a geometric distribution with success probability p. The value p is in the range (0, 1].
Parameter p
Success probability

interface RandomCauchy

interface RandomCauchy extends RandomNumberGenerationSource {}

A configurable random number generator with a Cauchy distribution.

call signature

(a?: number, b?: number): () => number;

Returns a function for generating random numbers with a Cauchy distribution. a and b have the same meanings and default values as in d3.randomWeibull.
Parameter a
Location parameter
Parameter b
Scale parameter

interface RandomExponential

interface RandomExponential extends RandomNumberGenerationSource {}

A configurable random number generator for the exponential distribution.

call signature

(lambda: number): () => number;

Returns a function for generating random numbers with an exponential distribution with the rate lambda; equivalent to time between events in a Poisson process with a mean of 1 / lambda.
Parameter lambda
Expected time between events.

interface RandomGamma

interface RandomGamma extends RandomNumberGenerationSource {}

A configurable random number generator with a gamma distribution.

call signature

(k: number, theta?: number): () => number;

Returns a function for generating random numbers with a gamma distribution with k the shape parameter and theta the scale parameter. The value k must be a positive value; if theta is not specified, it defaults to 1.
Parameter k
Shape parameter
Parameter theta
Scale paramter

interface RandomGeometric

interface RandomGeometric extends RandomNumberGenerationSource {}

A configurable random number generator with a geometric distribution.

call signature

(p: number): () => number;

Returns a function for generating numbers with a geometric distribution with success probability p. The value p is in the range [0, 1].
Parameter p
Success probability

interface RandomInt

interface RandomInt extends RandomNumberGenerationSource {}

A configurable random integer generator for the uniform distribution.

call signature

(max: number): () => number;

Returns a function for generating random integers with a uniform distribution. The minimum allowed value of a returned number is ⌊min⌋ (inclusive), and the maximum is ⌊max - 1⌋ (inclusive) Min defaults to 0.
Parameter max
The maximum allowed value of a returned number.

call signature

(min: number, max: number): () => number;

Returns a function for generating random integers with a uniform distribution. The minimum allowed value of a returned number is ⌊min⌋ (inclusive), and the maximum is ⌊max - 1⌋ (inclusive)
Parameter min
The minimum allowed value of a returned number.
Parameter max
The maximum allowed value of a returned number.

interface RandomIrwinHall

interface RandomIrwinHall extends RandomNumberGenerationSource {}

A configurable random number generator for the Irwin–Hall distribution.

call signature

(n: number): () => number;

Returns a function for generating random numbers with an Irwin–Hall distribution with n independent variables. If the fractional part of n is non-zero, this is treated as adding d3.randomUniform() times that fractional part to the integral part.
Parameter n
Number of independent random variables to use.

interface RandomLogistic

interface RandomLogistic extends RandomNumberGenerationSource {}

A configurable random number generator with a logistic distribution.

call signature

(a?: number, b?: number): () => number;

Returns a function for generating random numbers with a logistic distribution. a and b have the same meanings and default values as in d3.randomWeibull.
Parameter a
Location parameter
Parameter b
Scale parameter

interface RandomLogNormal

interface RandomLogNormal extends RandomNumberGenerationSource {}

A configurable random number generator for the log-normal distribution.

call signature

(mu?: number, sigma?: number): () => number;

Returns a function for generating random numbers with a log-normal distribution. The expected value of the random variable’s natural logarithm is mu, with the given standard deviation sigma. If mu is not specified, it defaults to 0; if sigma is not specified, it defaults to 1.
Parameter mu
Expected value, defaults to 0.
Parameter sigma
Standard deviation, defaults to 1.

interface RandomNormal

interface RandomNormal extends RandomNumberGenerationSource {}

A configurable random number generator for the normal (Gaussian) distribution.

call signature

(mu?: number, sigma?: number): () => number;

Returns a function for generating random numbers with a normal (Gaussian) distribution. The expected value of the generated numbers is mu, with the given standard deviation sigma. If mu is not specified, it defaults to 0; if sigma is not specified, it defaults to 1.
Parameter mu
Expected value, defaults to 0.
Parameter sigma
Standard deviation, defaults to 1.

interface RandomNumberGenerationSource

interface RandomNumberGenerationSource {}

method source

source: (source: () => number) => this;

Returns the same type of function for generating random numbers but where the given random number generator source is used as the source of randomness instead of Math.random. This is useful when a seeded random number generator is preferable to Math.random.
Parameter source
Source (pseudo-)random number generator implementing the Math.random interface. The given random number generator must implement the same interface as Math.random and only return values in the range [0, 1).

interface RandomPareto

interface RandomPareto extends RandomNumberGenerationSource {}

A configurable random number generator with an Pareto distribution.

call signature

(alpha: number): () => number;

Returns a function for generating random numbers with a Pareto distribution with the shape alpha. The value alpha must be a positive value.
Parameter alpha
alpha

interface RandomPoisson

interface RandomPoisson extends RandomNumberGenerationSource {}

A configurable random number generator with a Poisson distribution.

call signature

(lambda: number): () => number;

Returns a function for generating random numbers with a Poisson distribution with mean lambda.
Parameter lambda
Mean

interface RandomUniform

interface RandomUniform extends RandomNumberGenerationSource {}

A configurable random number generator for the uniform distribution.

call signature

(max?: number): () => number;

Returns a function for generating random numbers with a uniform distribution. The minimum allowed value of a returned number is min (inclusive), and the maximum is max (exclusive). Min defaults to 0; if max is not specified, it defaults to 1.
Parameter max
The maximum allowed value of a returned number, defaults to 1.

call signature

(min: number, max: number): () => number;

Returns a function for generating random numbers with a uniform distribution. The minimum allowed value of a returned number is min (inclusive), and the maximum is max (exclusive).
Parameter min
The minimum allowed value of a returned number.
Parameter max
The maximum allowed value of a returned number.

interface RandomWeibull

interface RandomWeibull extends RandomNumberGenerationSource {}

A configurable random number generator with one of the generalized extreme value distributions.

call signature

(k: number, a?: number, b?: number): () => number;

Returns a function for generating random numbers with one of the generalized extreme value distributions, depending on k: If k is positive, the Weibull distribution with shape parameter k If k is zero, the Gumbel distribution If k is negative, the Fréchet distribution with shape parameter −k In all three cases, a is the location parameter and b is the scale parameter. If a is not specified, it defaults to 0; if b is not specified, it defaults to 1.
Parameter k
Shape parameter
Parameter a
Location parameter
Parameter b
Scale parameter

Package Files (1)

index.d.ts

Dependencies (0)

No dependencies.

Dev Dependencies (0)

No dev dependencies.

Peer Dependencies (0)

No peer dependencies.

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@types/d3-random

Install

Overview

Index

Variables

Functions

Interfaces

Variables

variable randomBates

variable randomBernoulli

variable randomBeta

variable randomBinomial

variable randomCauchy

variable randomExponential

variable randomGamma

variable randomGeometric

variable randomInt

variable randomIrwinHall

variable randomLogistic

variable randomLogNormal

variable randomNormal

variable randomPareto

variable randomPoisson

variable randomUniform

variable randomWeibull

Functions

function randomLcg

Parameter seed

Interfaces

interface RandomBates

Parameter n

interface RandomBernoulli

Parameter p

interface RandomBeta

Parameter alpha

Parameter beta

interface RandomBinomial

Parameter p

interface RandomCauchy

Parameter a

Parameter b

interface RandomExponential

Parameter lambda

interface RandomGamma

Parameter k

Parameter theta

interface RandomGeometric

Parameter p

interface RandomInt

Parameter max

Parameter min

Parameter max

interface RandomIrwinHall

Parameter n

interface RandomLogistic

Parameter a

Parameter b

interface RandomLogNormal

Parameter mu

Parameter sigma

interface RandomNormal

Parameter mu

Parameter sigma

interface RandomNumberGenerationSource

method source

Parameter source

interface RandomPareto

Parameter alpha

interface RandomPoisson

Parameter lambda

interface RandomUniform

Parameter max

Parameter min

Parameter max

interface RandomWeibull

Parameter k

Parameter a

Parameter b

Package Files (1)

Dependencies (0)