2.6 KiB
2.6 KiB
Linspace
Generate a linearly spaced numeric array.
Usage
var linspace = require( '@stdlib/array/linspace' );
linspace( start, stop[, length] )
Generates a linearly spaced numeric array
. If a length
is not provided, the default output array
length is 100
.
var arr = linspace( 0, 100, 6 );
// returns [ 0, 20, 40, 60, 80, 100 ]
Notes
-
The output
array
is guaranteed to include thestart
andstop
values. Beware, however, that values between thestart
andstop
are subject to floating-point errors. Hence,var arr = linspace( 0, 1, 3 ); // returns [ 0, ~0.5, 1 ]
where
arr[1]
is only guaranteed to be approximately equal to0.5
. If you desire more control over element precision, consider using roundn:var roundn = require( '@stdlib/math/base/special/roundn' ); // Create an array subject to floating-point errors: var arr = linspace( 0, 1, 21 ); // Round each value to the nearest hundredth: var out = []; var i; for ( i = 0; i < arr.length; i++ ) { out.push( roundn( arr[ i ], -2 ) ); } console.log( out.join( '\n' ) );
Examples
var linspace = require( '@stdlib/array/linspace' );
var out;
// Default behavior:
out = linspace( 0, 10 );
console.log( out.join( '\n' ) );
// Specify length:
out = linspace( 0, 10, 10 );
console.log( out.join( '\n' ) );
out = linspace( 0, 10, 11 );
console.log( out.join( '\n' ) );
// Create an array with decremented values:
out = linspace( 10, 0, 11 );
console.log( out.join( '\n' ) );