array-normalize

array-normalize

Normalize array to unit length, that is 0..1 range. See feature scaling.

const normalize = require('array-normalize')

normalize([0, 50, 100]) // [0, .5, 1]
normalize([0, 0, .1, .2, 1, 2], 2) // [0, 0, .1, .1, 1, 1]
normalize([0, .25, 1, .25], 2, [0, .5, 1, .5]) // [0, .5, 1, .5])

API

array = normalize(array, dimensions=1, bounds?)

Normalizes n-dimensional array in-place using dimensions as stride, ie. for 1d array the expected data layout is [x, x, x, ...] for 2d is [x, y, x, y, ...], etc.

Every dimension is normalized independently, eg. 2d array is normalized to unit square [0, 0, 1, 1].

Optional bounds box can predefine min/max to optimize calculations.