time-to-botec/js/node_modules/@stdlib/stats/base/dists/chisquare/median

Median

Chi-squared distribution median.

Usage

var median = require( '@stdlib/stats/base/dists/chisquare/median' );

median( k )

Returns the median of a chi-squared distribution with degrees of freedom k.

var v = median( 9.0 );
// returns ~8.343

v = median( 2.0 );
// returns ~1.386

If provided k < 0, the function returns NaN.

var y = median( -1.0 );
// returns NaN

Examples

var randu = require( '@stdlib/random/base/randu' );
var round = require( '@stdlib/math/base/special/round' );
var median = require( '@stdlib/stats/base/dists/chisquare/median' );

var k;
var y;
var i;

for ( i = 0; i < 10; i++ ) {
    k = randu() * 20.0;
    y = median( k );
    console.log( 'k: %d, Median(X,k): %d', k.toFixed( 4 ), y.toFixed( 4 ) );
}