option = { tooltip: { trigger: 'axis' }, legend: { bottom:0 }, xAxis: [ { type: 'category', data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'] } ], yAxis: [ { type: 'value', min: 0, max: 250, interval: 50, axisLabel: { formatter: '{value} ml' } }, { type: 'value', min: 0, max: 25, interval: 5, axisLabel: { formatter: '{value} °C' } } ], series: [ { name: 'Evaporation', type: 'bar', itemStyle: { color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [ { offset: 0, color: '#35EB81' }, { offset: 1, color: 'rgba(53,235,129,.2)' } ]) }, data: [ 2.0, 4.9, 7.0, 23.2, 25.6, 76.7, 135.6, 162.2, 32.6, 20.0, 6.4, 3.3 ] }, { name: 'Precipitation', type: 'bar', itemStyle: { color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [ { offset: 0, color: '#32C1FF' }, { offset: 1, color: 'rgba(17,75,183,0.20)' } ]) }, data: [ 2.6, 5.9, 9.0, 26.4, 28.7, 70.7, 175.6, 182.2, 48.7, 18.8, 6.0, 2.3 ] }, { name: 'Temperature', type: 'line', itemStyle:{ color:"#D7BC2F" }, yAxisIndex: 1, data: [2.0, 2.2, 3.3, 4.5, 6.3, 10.2, 20.3, 23.4, 23.0, 16.5, 12.0, 6.2] } ] };