JHeatChart是一个Java类，用来创建热图图表。
示例代码：
//Createsomedummydata.double[][]data=ewdouble[][]{{3,2,3,4,5,6}, {2,3,4,5,6,7}, {3,4,5,6,7,6}, {4,5,6,7,6,5}};//Createourheatchartusigourdata.HeatChartchart=ewHeatChart(data);//Customisethechart.chart.setTitle("Thisismycharttitle");chart.setXAxisLabel("XAxis");chart.setYAxisLabel("YAxis");//Outputthecharttoafile.chart.saveToFile(ewFile("my-chart.pg"));
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