Categorized By Series
Overview
All cartesian charts with the ordinal scale can be distrubuted on the X axis in two ways: by series names and by point names.
Configuration
Use the categorizedBySeries() method to set the way series are distributed on the X axis:
// Distribute series by series names or point names
// true: by series names
// false: by point names
chart.categorizedBySeries(true);