median(list)

Overview

The median function calculates the median value from a given list of numbers. The median is the middle value in a data set sorted in ascending order. For a list with an odd number of elements, the median is the exact middle value. For a list with an even number of elements, the median is the average of the two middle values.

Parameters

Parameter Name	Type	Description	Required	Default Value
list	table	A list of numerical values to find the median from. The list must contain at least one numerical value.	Yes	N/A

Returns

Type	Description	Possible Values
number or nil	The median value of the elements in the list. If the list is empty or nil values are encountered, returns nil.	Any numerical value or nil

Constraints

• The list parameter must be a table containing numerical values only.
• The table must have at least one element; otherwise, the function will return nil.

Example Use

local myList = {7, 2, 3, 6, 5}
local result = StatBook.median(myList)

print(result)  -- Output will be 5