ndarray-prefix-sum

Computes a prefix sum of an ndarray

ndarray-prefix-sum

Computes a prefix sum of an array, or in higher dimensions the summed area table of an image. Works both in node.js and in the browser. Built on top of ndarray.

var ndarray = require("ndarray")
var prefixSum = require("ndarray-prefix-sum")
 
var x = ndarray(new Float32Array([1, 2, 3, 4, 5, 6]))
 
prefixSum(x)
 
for(var i=0; i<x.shape[0]; ++i) {
  console.log(x.get(i))
}
npm install ndarray-prefix-sum

Computes the prefix sum of array in place.

  • array is an ndarray

Returns array

##Credits (c) 2013 Mikola Lysenko. MIT License