option = { legend: {}, tooltip: {}, dataset: { dimensions: ['product', '2015', '2016', '2017'], source: [ { product: 'Matcha Latte', 2016: 85.8 }, { product: 'Milk Tea', 2015: 83.1 }, { product: 'Cheese Cocoa', 2017: 82.5 }, { product: 'Walnut Brownie', 2017: 39.1 }, { product: 'Walnut Brownie33', 2016: 39.1 }, ], }, xAxis: { type: 'category' }, yAxis: [ { data: ['2015', '2016', '2017'], }, { type: 'value', splitLine: { show: false, }, axisTick: { show: false, }, axisLine: { show: false, }, axisLabel: { show: false, }, }, ], // Declare several bar series, each will be mapped // to a column of dataset.source by default. series: [ { type: 'bar', barGap: '-100%', yAxisIndex: 1 }, { type: 'bar', yAxisIndex: 1 }, { type: 'bar', yAxisIndex: 1 }, ], };