Interface CDF

Interface for the cumulative distribution function (CDF) of a lognormal distribution.

Hierarchy

CDF

Callable

__call(x: number, mu: number, sigma: number): number

- Defined in lib/node_modules/@stdlib/stats/base/dists/lognormal/cdf/docs/types/index.d.ts:32
Evaluates the cumulative distribution function (CDF) for a lognormal distribution with location parameter mu and scale parameter sigma at a value x.

Notes
- If provided sigma <= 0, the function returns NaN.
Parameters
- x: number
  
  input value
- mu: number
  
  location parameter
- sigma: number
  
  scale parameter
Returns number

evaluated CDF

Example
```
var y = cdf( 2.0, 0.0, 1.0 );
// returns ~0.756
```
Example
```
var y = cdf( 5.0, 10.0, 3.0 );
// returns ~0.003
```
Example
```
var y = cdf( 2.0, 0.0, NaN );
// returns NaN
```
Example
```
var y = cdf( 2.0, NaN, 1.0 );
// returns NaN
```
Example
```
var y = cdf( NaN, 0.0, 1.0 );
// returns NaN
```

Index

Methods

factory

Methods

factory

factory(mu: number, sigma: number): Unary

- Defined in lib/node_modules/@stdlib/stats/base/dists/lognormal/cdf/docs/types/index.d.ts:83
Returns a function for evaluating the cumulative distribution function (CDF) for a lognormal distribution with location parameter mu and scale parameter sigma.

Parameters
- mu: number
  
  location parameter
- sigma: number
  
  scale parameter
Returns Unary

CDF

Example
```
var mycdf = cdf.factory( 3.0, 1.5 );

var y = mycdf( 1.0 );
// returns ~0.023

y = mycdf( 4.0 );
// returns ~0.141
```