var chart = c3.generate({ bindto: '#pkgchart', size: { height: 260 //width: 480 }, data: { columns: [ ['Trend',3,1,1,2,1,1,1,1,3,1,1,2,3,2,1,3,2], ['Bars',3,1,1,2,1,1,1,1,3,1,1,2,3,2,1,3,2] ], axes: { Bars: 'y2' }, types: { Bars: 'bar' // ADD }, colors: { Trend: 'green', Bars: 'orange' } }, axis: { y: { label: { text: 'Downloads for sparseGAM', position: 'outer-middle' } }, y2: { show: false, label: { text: 'Y2 Label', position: 'outer-middle' } }, x: { type: 'category', categories: ['01/15','01/16','01/18','01/22','01/23','01/25','01/27','01/28','01/30','01/31','02/01','02/05','02/08','02/09','02/10','02/11','02/12'], tick: { rotate: -80, multiline: false } } } });