无法显示 boxAndWhisker canvasJS

如何解决无法显示 boxAndWhisker canvasJS

我想用 canvasJS 在 BoxAndWhisker 图上显示值。我可以用 X 标签和 Y 值显示轴，但我不能显示 BoxAndWhisker 图

这是我的代码

 <c:out value="${pointdata}" escapeXml="false" />
<script type="text/javascript">

window.onload = function() { 

        
var chart = new CanvasJS.Chart("chartContainer",{
    animationEnabled: true,theme: "light2",title:{
        text: "sondes 42"
    },subtitles: [{
        text: "controle"
    }],axisY: {
        title: "intensite des sondes",},data: [{
        type: "BoxAndWhisker",yValueFormatString: "###.##",dataPoints :  <%out.print(dataPoints) ;%>
    }]
});
chart.render();
 
}

我的点数据值（json格式）：

[{"y":[146.86,141.54,166.51,121.42],"label":"May 7,2021 3:24:10 PM"},{"y":[146.86,121.42,142.23,135.64,121.04,130.38,132.5,134.26,140.98,121.07,131.79,145.17],"label":"May 6,2021 3:05:23 PM"},145.17,108.57,119.04,120.21,107.85,106.53,99.82,115.4,95.98],"label":"May 17,2021 11:46:58 AM"}]

显示图

我不知道如何显示 BoxAndWhisker