`dataFrame.column.num — toFloat()`

Description

The toFloat() method of the num object returns the values of the selected column converted to floating-point numbers.

Signature

dataFrame.column(columnName).num.toFloat()

Scope: dataFrame
Family: num
Returns: array

Argument

columnName (string): The name of the column containing the values to convert.

Returns

mask ( number[] ): An array containing the converted values.

Example

// convert values from a column of the dataFrame to floats
var mask = dataFrame.column('values').num.toFloat();

// add values to the dataFrame
dataFrame.column('newValues').set(mask);