G2 - 散点矩阵

             <!DOCTYPE html>
    <html>
      <head>
        <meta charset="utf-8">
        <title>散点矩阵</title>
<script src="https://a.alipayobjects.com/jquery/jquery/1.11.1/jquery.js"></script>
<script src="https://gw.alipayobjects.com/as/g/datavis/g2/2.3.13/index.js"></script>
      </head>
      <body>
          <div id="c1"></div>
 <script>
$.getJSON('../../../static/data/Iris-flower.json',function(data){
  var Stat = G2.Stat;
  var chart = new G2.Chart({
    id: 'c1',
    forceFit: true,
    height: 450,
    plotCfg: {
      margin: [20, 95]
    }
  });
  var items = ['SepalLength', 'SepalWidth', 'PetalLength', 'PetalWidth'];
  var x = 0;
  var y = 0;
  for (var v = 0; v < items.length; v++) {
    for (var h = 0; h < items.length; h++) {
      var view = chart.createView({
        index: h + v,
        start: {
          x: x,
          y: y
        },
        end: {
          x: x + 0.2,
          y: y + 0.2
        }
      });
      view.source(data);
      view.axis(items[h], {
        title: null,
          labels: null,
          line: {
            stroke: '#000'
          },
          tickLine: {
            stroke: '#000'
          }
      });
      view.axis(items[v], {
        title: null,
        labels: null,
        line: {
          stroke: '#000'
        },
        tickLine: {
          stroke: '#000'
        }
      });
      view.point().position(items[h] + "*" + items[v])
        .color('Species', ['#880000', '#008800', '#000088'])
        .opacity(0.5)
        .shape('circle')
        .size(3);
      if (v === 3) {
        // 横向维度显示
        chart.guide().text([x + 0.02, 0.95 - (y + 0.2)], items[h]);
      }
      x += 0.25;
    }
    x = 0;
    y += 0.25;
    // 纵向维度显示
    chart.guide().text([x-0.015, 1.07 - y], items[v], {
      rotate: -90
    });
  }
  chart.render();
});
</script>


      </body>
    </html>
          
        

散点矩阵

散点图矩阵是散点图的高维扩展，它从一定程度上克服了在平面上展示高维数据的困难，在展示多维数据的两两关系时有着不可替代的作用。

<!DOCTYPE html>
    <html>
      <head>
        <meta charset="utf-8">
        <title>散点矩阵</title>
        <script src="https://unpkg.com/react@15/dist/react.min.js"></script>
        <script src="https://unpkg.com/react-dom@15/dist/react-dom.min.js"></script>
        <script src="https://a.alipayobjects.com/g/datavis/g2/2.3.13/g2.js"></script>
        <script src="https://unpkg.com/g2-react@1.2.0/dist/index.js"></script>
        <script src="https://cdn.bootcss.com/babel-core/5.8.38/browser.min.js"></script>
        <script src="https://unpkg.com/axios/dist/axios.min.js"></script>
      </head>
      <body>
          <div id="c1"></div>
 <script type="text/babel">
    const Chart = createG2(chart => {
      const Stat = G2.Stat;
      const data = chart.get('data');
      const items = ['SepalLength', 'SepalWidth', 'PetalLength', 'PetalWidth'];
      let x = 0;
      let y = 0;
      for (let v = 0; v < items.length; v++) {
        for (let h = 0; h < items.length; h++) {
          const view = chart.createView({
            index: h + v,
            start: {
              x: x,
              y: y
            },
            end: {
              x: x + 0.2,
              y: y + 0.2
            }
          });
          view.source(data);
          view.axis(items[h], {
            title: null,
              labels: null,
              line: {
                stroke: '#000'
              },
              tickLine: {
                stroke: '#000'
              }
          });
          view.axis(items[v], {
            title: null,
            labels: null,
            line: {
              stroke: '#000'
            },
            tickLine: {
              stroke: '#000'
            }
          });
          view.point().position(items[h] + "*" + items[v])
            .color('Species', ['#880000', '#008800', '#000088'])
            .opacity(0.5)
            .shape('circle')
            .size(3);
          if (v === 3) {
            // 横向维度显示
            chart.guide().text([x + 0.02, 0.95 - (y + 0.2)], items[h]);
          }
          x += 0.25;
        }
        x = 0;
        y += 0.25;
        // 纵向维度显示
        chart.guide().text([x-0.015, 1.07 - y], items[v], {
          rotate: -90
        });
      }
      chart.render();
    });

const MyComponent = React.createClass({
      getInitialState() {
        return {
          data: [],
          forceFit: true,
          width: 500,
          height: 450,
          plotCfg: {
            margin: [20, 95]
          },
        };
      },
      componentDidMount: function() {
        const self = this;
        axios.get('../../../static/data/Iris-flower.json').then(function (response) {
          self.setState({
            data: response.data
          });
        }).catch(function (error) {
          console.log(error);
        });
      },
      render() {
        if (this.state.data.length === 0) {
          return (<div></div>);
        } else {
          return (
            <div>
              <Chart
                data={this.state.data}
                width={this.state.width}
                height={this.state.height}
                plotCfg={this.state.plotCfg}
                forceFit={this.state.forceFit} />
            </div>
          );
        }
      },
    });
    ReactDOM.render(<MyComponent />, document.getElementById('c1'));
</script>

</body>
    </html>