$(\"#radarDLBut\").click(function(){
var data = [displayData[\"radar_chart\"][\"r_label\"],displayData[\"radar_chart\"][\"r_default\"]]; 
var csvContent = \"data:text/csv;charset=utf-8,\\ufeff\";
if (window.navigator.msSaveOrOpenBlob) {
  csvContent = \"\\ufeff\";
}
data.forEach(function(infoArray, index){
  dataString = infoArray.join(\",\");
  csvContent += index < data.length ? dataString+ \"\\n\" : dataString;
});
if (window.navigator.msSaveOrOpenBlob) {
  // if browser is IE
  var blob = new Blob([decodeURIComponent(encodeURI(csvContent))],{
 type: \"text/csv;charset=utf-8;\"
  });
  navigator.msSaveBlob(blob, \'subject.csv\');
}else{
  var encodedUri = encodeURI(csvContent);
  var link = document.createElement(\"a\");
  link.setAttribute(\"href\", encodedUri);
  link.setAttribute(\"download\", \"subject.csv\");
  document.body.appendChild(link);
  link.click();
}
});