quartile

statistics

Calculates quartile values (0.25, 0.5, 0.75)

Syntax

quartile(array|dataframe, percentile)

Parameters

array|dataframe (array or dataframe)

The data to calculate quartiles from

percentile (number)

The quartile to calculate (0.25, 0.5, or 0.75)

Returns

number

The value at the specified quartile

Examples

First quartile (Q1)

Input:

.values | quartile(0.25)

Output:

25.5

Second quartile (median)

Input:

.values | quartile(0.5)

Output:

50.0

Third quartile (Q3)

Input:

.values | quartile(0.75)

Output:

75.25

The quartile() function calculates quartile values, which divide the data into four equal parts. Common quartiles are 0.25 (Q1), 0.5 (Q2/median), and 0.75 (Q3).

Usage

Use quartile() for statistical analysis, identifying data distribution, and detecting outliers using the interquartile range (IQR).

Related Functions

percentile median min max