ndarray-vector-fill

Fill an ndarray with component-wise vectors

Introduction

This module is very similar to ndarray-fill, except it fills an ndarray with vectors. This is useful when you have a function that computes, for example, all three components of a vector at the same time. Using ndarray-fill, you'd have to compute the function three times over and throw out most of the results.

Installation

$ npm i ndarray-vector-fill

Example

var fill = require('ndarray-vector-fill');
var pool = require('ndarray-scratch');
var show = require('ndarray-show');
 
var A = fill(pool.zeros([3, 3, 2], function (i, j) {
  return [i, 5 + j];
});
 
console.log(show(A));
// => 
//   0.000    5.000
//   0.000    6.000
//   0.000    7.000
//
//   1.000    5.000
//   1.000    6.000
//   1.000    7.000
//
//   2.000    5.000
//   2.000    6.000
//   2.000    7.000

Usage

require('ndarray-vector-fill')(array, func)

Iterates over the first n - 1 dimensions of array, filling the remaining dimensions with the components of func.

• array is an ndarray which will be initialized
• func is a function of n - 1 arguments that receives the corresponding indices of the first n - 1 dimensions of array. It should return an array with length matching the last dimension of array.

Returns An initialized array

See Also

• ndarray-fill

License

© 2016 Ricky Reusser. MIT License.