`dataFrame.rows — dedupe()`

Description

The dedupe() method of the rows object removes duplicate rows based on the combined values of the specified columns.

Signature

dataFrame.rows.dedupe(columnNames)

Scope: dataFrame
Family: rows
Returns: mutates

Argument

columnNames ( string[] ): The column name or list of column names used to identify duplicate rows.

Example

// remove deduplicates from a dataFrame
var columnNames = ['col_1', 'col_2'];
dataFrame.rows.dedupe(columnNames);