var chart = c3.generate({
    bindto: '#pkgchart',
	size: {
        height: 260
        //width: 480
    },
    data: {
      columns: [
        ['Trend',516,578,376,241,280,483,497,511,362,400,215,260,445,392,422,447,324,288,254,422,411,461,408,319,194,279,376,396,455,380],
        ['Bars',516,578,376,241,280,483,497,511,362,400,215,260,445,392,422,447,324,288,254,422,411,461,408,319,194,279,376,396,455,380]      ],
      axes: {
        Bars: 'y2'
      },
      types: {
        Bars: 'bar' // ADD
      },
	  colors: {
            Trend: 'green',
            Bars: 'orange'
        }
    },
    axis: {
      y: {
        label: {
          text: 'Downloads for rstanarm',
          position: 'outer-middle'
        }
      },
      y2: {
        show: false,
        label: {
          text: 'Y2 Label',
          position: 'outer-middle'
        }
      },
	  x: {
            type: 'category',
            categories: ['05/01','05/02','05/03','05/04','05/05','05/06','05/07','05/08','05/09','05/10','05/11','05/12','05/13','05/14','05/15','05/16','05/17','05/18','05/19','05/20','05/21','05/22','05/23','05/24','05/25','05/26','05/27','05/28','05/29','05/30'],
			tick: {
                rotate: -80,
                multiline: false
            }
        }
    }
});