`dataFrame.column.stat — proportion()`

Description

The proportion() method of the stat object returns an array containing the proportions of the values in the selected column.

Signature

dataFrame.column(columnName).stat.proportion()

Scope: column
Family: stat
Returns: array

Argument

columnName (string): The name of the column from which to calculate values proportion.

Returns

mask ( number[] ): An array containing the proportions of the values in the selected column.

Example

// get proportions from values of a column of the dataFrame
var mask = dataFrame.column('revenue').stat.proportion();

// add the proportions to the DataFrame
dataFrame.column('proportions').set(mask);