JavaScript/Maths/AverageMedian.js at master · MMABSOUT/JavaScript · GitHub

22 lines (18 loc) · 799 Bytes

* Median: https://en.wikipedia.org/wiki/Median

* function averageMedian

* to find the median value of an array of numbers

* the numbers in an array will be sorted in ascending order by the function sortNumbers

* if the length of the array is even number, the median value will be the average of the two middle numbers

* else if the length of the array is odd number, the median value will be the middle number in the array

const averageMedian = (sourceArrayOfNumbers) => {

const numbers = [...sourceArrayOfNumbers].sort(sortNumbers)

const numLength = numbers.length

return numLength % 2 === 0

? (numbers[numLength / 2 - 1] + numbers[numLength / 2]) / 2

: numbers[Math.floor(numLength / 2)]

}

const sortNumbers = (num1, num2) => num1 - num2

export { averageMedian }

Expand file tree