Axis Label

# axes_label.js

var chart = c3.generate({ data: { columns: [ ['sample', 30, 200, 100, 400, 150, 250], ['sample2', 130, 300, 200, 500, 250, 350] ], axes: { sample2: 'y2' } }, axis: { x: { label: 'X Label' }, y: { label: 'Y Label' }, y2: { show: true, label: 'Y2 Label' } } });