Logit function.
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Compute the [logit][logit] function.
p / (1-p); i.e.,math
\mathop{\mathrm{logit}}(p)=\log \left({\frac {p}{1-p}}\right)bash
npm install @stdlib/math-base-special-logitscript tag without installation and bundlers, use the [ES Module][es-module] available on the [esm][esm-url] branch (see [README][esm-readme]).deno][deno-url] branch (see [README][deno-readme] for usage intructions).umd][umd-url] branch (see [README][umd-readme]).javascript
var logit = require( '@stdlib/math-base-special-logit' );javascript
var v = logit( 0.2 );
// returns ~-1.386
v = logit( 0.9 );
// returns ~2.197p < 0 or p > 1, the function returns NaN.javascript
var v = logit( 1.3 );
// returns NaN
v = logit( -0.2 );
// returns NaNjavascript
var uniform = require( '@stdlib/random-array-uniform' );
var logEachMap = require( '@stdlib/console-log-each-map' );
var logit = require( '@stdlib/math-base-special-logit' );
var opts = {
'dtype': 'float64'
};
var p = uniform( 100, 0.0, 1.0, opts );
logEachMap( 'logit(%0.4f) = %0.4f', p, logit );c
#include "stdlib/math/base/special/logit.h"c
double out = stdlib_base_logit( 0.2 );
// returns ~-1.386
out = stdlib_base_logit( 0.9 );
// returns ~2.197[in] double input value.c
double stdlib_base_logit( const double p );c
#include "stdlib/math/base/special/logit.h"
#include <stdlib.h>
#include <stdio.h>
int main( void ) {
double x;
double v;
int i;
for ( i = 0; i < 100; i++ ) {
x = (double)rand() / (double)RAND_MAX;
v = stdlib_base_logit( x );
printf( "logit(%lf) = %lf\n", x, v );
}
}
