`dataFrame.header — add()`

Description

The add() method of the header object creates a header row from the specified column names. Column names must be non-empty unique strings and must match the number of columns in the DataFrame.

Signature

dataFrame.header.add(columnNames)

Scope: dataFrame
Family: header
Returns: mutates

Argument

columnNames ( string[] ): The name of the columns used to create the header row.

Example

// header for a dataFrame with 2 columns
var columnNames = [ 'col_1', 'col_2' ];

// add the header to the dataFrame
dataFrame.header.add(columnNames);