time-to-botec/squiggle/node_modules/@stdlib/math/base/special/expit
NunoSempere b6addc7f05 feat: add the node modules
Necessary in order to clearly see the squiggle hotwiring.
2022-12-03 12:44:49 +00:00
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README.md feat: add the node modules 2022-12-03 12:44:49 +00:00

expit

Compute the standard logistic function.

The standard logistic function, also called the expit function, inverse logit, or sigmoid function, is defined as the logistic function with parameters (k = 1, x0 = 0, L = 1).

Standard logistic function.

Usage

var expit = require( '@stdlib/math/base/special/expit' );

expit( x )

Computes the standard logistic function.

var v = expit( 0.0 );
// returns ~0.5

v = expit( 1.0 );
// returns ~0.731

v = expit( -1.0 );
// returns ~0.269

v = expit( Infinity );
// returns 1.0

v = expit( NaN );
// returns NaN

Examples

var randu = require( '@stdlib/random/base/randu' );
var expit = require( '@stdlib/math/base/special/expit' );

var x;
var i;

for ( i = 0; i < 100; i++ ) {
    x = randu();
    console.log( 'expit(%d) = %d', x, expit( x ) );
}