nylira-normalize

Normalize an array of numbers to the range [min..max]

Install

npm install nylira-normalize

Use it

var normalize = require('nylira-normalize')
var numbers = [-20, -10, 0, 10, 20]

// normalize the numbers to [0..1]
normalize(numbers)

// output:
// [0.2, 0.4, 0.6, 0.8, 1]

// normalize the numbers to [0..60]
normalize(numbers, 0, 60)

// output:
// [0, 15, 30, 45, 60]

Test

npm test

// console output:
normalize([-20,-10,0,10,20])                 = [ 0, 0.25, 0.5, 0.75, 1 ]
normalize([-20,-10,0,10,20], 0, 60)          = [ 0, 15, 30, 45, 60 ]
normalize([-20,-10,0,10,20], -1, 1)          = [ -1, -0.5, 0, 0.5, 1 ]
normalize([-20,-10,0,10,20], -60, 120)       = [ -60, -15, 30, 75, 120 ]
normalize([0,12,43,77,100], -4.1, 97)        = [ -4.1, 8.032, 39.373, 73.747, 97 ]
normalize([1, 2, 3, 4, 5], -1, 1)            = [ -1, -0.5, 0, 0.5, 1 ]
normalize([1, 2, 3, 4, 5], -1, 1)            = [ -1, -0.5, 0, 0.5, 1 ]
normalize([1.3, 2.3, 3.3, 4.3, 5.3], -7, -1) = [ -7, -5.5, -4, -2.5, -1 ]

License

MIT