test/data-transform-aggregate2.html

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<html>
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1" />
        <script src="lib/simpleRequire.js"></script>
        <script src="lib/config.js"></script>
        <script src="lib/jquery.min.js"></script>
        <script src="lib/facePrint.js"></script>
        <script src="lib/testHelper.js"></script>
        <!-- <script src="ut/lib/canteen.js"></script> -->
        <link rel="stylesheet" href="lib/reset.css" />
    </head>
    <body>
        <style>
            .chart {
                width: 260px;
                height: 150px;
                display: inline-block;
            }
        </style>



        <div id="main"></div>






        <script>
        require([
            'echarts'
        ], function (echarts) {
            var option;

            var dataset = [
                ['Group', 'Name', 'Year', 'Value'],
                ['A', 'A1', '2020', 10],
                ['A', 'A2', '2020', 12],
                ['A', 'A3', '2020', 15],
                ['A', 'A1', '2021', 8],
                ['A', 'A2', '2021', 5],
                ['A', 'A3', '2021', 9],
                ['B', 'B1', '2020', 5],
                ['B', 'B2', '2020', 9],
                ['B', 'B3', '2020', 2],
                ['B', 'B1', '2021', 15],
                ['B', 'B2', '2021', 18],
                ['B', 'B3', '2021', 3],
            ]

            function createOption(groupBy, method) {
                return option = {
                    animation: false,
                    grid: {
                        top: 10,
                        bottom: 20,
                        containLabel: true,
                        left: 5,
                        right: 5
                    },
                    title: {
                        text: groupBy + ', ' + method,
                        left: 'center',
                        top: 0,
                        textStyle: {
                            fontSize: 10
                        }
                    },
                    dataset: [
                        {
                            source: dataset
                        },
                        {
                            fromDatasetIndex: 0,
                            transform: [{
                                type: 'aggregate',
                                config: {
                                    output: [
                                        { from: 'Group' },
                                        { from: 'Name' },
                                        { from: 'Year' },
                                        { from: 'Value', method }
                                    ],
                                    groupBy
                                }
                            }]
                        }
                    ],
                    xAxis: {type: 'category'},
                    yAxis: {},
                    series: {
                        type: 'bar',
                        datasetIndex: 1,
                        encode: {
                            x: groupBy,
                            y: 'Value',
                            itemName: groupBy
                        }
                    }
                };
            }

            ['Group', 'Year'].forEach(groupBy => {
                ['count', 'sum', 'first', 'min', 'max', 'average', 'Q1', 'Q2', 'Q3', 'median'].forEach(method => {
                    const dom = document.createElement('div');
                    dom.className = 'chart';
                    const option = createOption(groupBy, method);
                    document.querySelector('#main').appendChild(dom);
                    const chart = echarts.init(dom);
                    chart.setOption(option);
                });
            });
        });
        </script>


    </body>
</html>