var chart = c3.generate({ bindto: '#pkgchart', size: { height: 260 //width: 480 }, data: { columns: [ ['Trend',1,1,1,10,2,1,2,10,1,10,1,10,1], ['Bars',1,1,1,10,2,1,2,10,1,10,1,10,1] ], axes: { Bars: 'y2' }, types: { Bars: 'bar' // ADD }, colors: { Trend: 'green', Bars: 'orange' } }, axis: { y: { label: { text: 'Downloads for riverplot', position: 'outer-middle' } }, y2: { show: false, label: { text: 'Y2 Label', position: 'outer-middle' } }, x: { type: 'category', categories: ['04/20','04/22','04/23','04/25','04/27','04/28','04/30','05/01','05/06','05/08','05/09','05/15','05/17'], tick: { rotate: -80, multiline: false } } } });