halflife-array

Creates an array of the halflife of something as it decreases over time.

Installation

npm i halflife-array

yarn add halflife-array

Usage

• readingAmount: The initial value
• halflifeMinutes: The halflife in minutes, default: 300 (5 hours)
• intervalMinutes: The interval to represent in the array, i.e. each array value is 10 minutes after the one before
• amountLimit: The value to stop calculating the value at

const halflifeArray = require('halflife-array');

const readingAmount = 100;
const halflifeMinutes = 300;
const intervalMinutes = 10; 
const amountLimit = 0.5;
const array = halflifeArray(readingAmount, halflifeMinutes, intervalMinutes, amountLimit);

console.log(array);

Which would create an array like this...

[100, 98.33333333333333, 96.66666666666667, 95, 93.33333333333333, 91.66666666666667, 90, ... , 0.5078125, 0.4947916666666667]