Generate a linearly spaced numeric array using a provided increment.
var incrspace = require( '@stdlib/array/incrspace' );Generates a linearly spaced numeric array. If an increment is not provided, the default increment is 1.
var arr = incrspace( 0, 11, 2 );
// returns [ 0, 2, 4, 6, 8, 10 ]-
The output
arrayis guaranteed to include thestartvalue but does not include thestopvalue. Beware that values subsequent to thestartvalue are subject to floating-point errors. Hence,var arr = incrspace( 0.1, 0.5, 0.2 ); // returns [ 0.1, ~0.3 ]
where
arr[1]is only guaranteed to be approximately equal to0.3.If you desire more control over element precision, consider using roundn:
var roundn = require( '@stdlib/math/base/special/roundn' ); var arr; var out; var i; // Create an array subject to floating-point errors: arr = incrspace( 0, 1.01, 0.02 ); // Round each value to the nearest hundredth: out = []; for ( i = 0; i < arr.length; i++ ) { out.push( roundn( arr[ i ], -2 ) ); } console.log( out.join( '\n' ) );
var incrspace = require( '@stdlib/array/incrspace' );
var out;
// Default behavior:
console.log( '\nDefault:' );
out = incrspace( 0, 10 );
console.log( out.join( '\n' ) );
// Specify increment:
console.log( '\nIncrement 2:' );
out = incrspace( 0, 10, 2 );
console.log( out.join( '\n' ) );
console.log( '\nIncrement 2:' );
out = incrspace( 0, 11, 2 );
console.log( out.join( '\n' ) );
console.log( '\nIncrement 0.02:' );
out = incrspace( 0, 1.01, 0.02 );
console.log( out.join( '\n' ) );
// Create an array using a negative increment:
console.log( '\nDecremented values:' );
out = incrspace( 10, 0, -2 );
console.log( out.join( '\n' ) );@stdlib/array/linspace: generate a linearly spaced array over a specified interval.@stdlib/array/logspace: generate a logarithmically spaced numeric array.