Question

Math isn’t really my thing, but what I’m trying to figure out is how to predict/estimate the next number from a dataset.

Let’s say I have an array:

var values = new Array(1,4,3,5,6,10,4,15);

Does anyone know a formula in javascript that could guess the next number after 15 based off the previous values in the array.

Basically I have an array of total numbers from daily sales, each item in the array is the total for a single day. So I’d like something that could guess what tomorrow’s sale might be.

Answer 1

Have a look at the various moving average methods – you can choose whichever suits your application best.