大神们问一下图表数据更新怎么做？ about g2 HOT 1 CLOSED

/ / 更新数据
      setTimeout(function() {
        var newData = [{"State":"AL","Under 5 Years":454546,"5 to 13 Years":56354634,"14 to 17 Years":34663,"18 to 24 Years":450818,"25 to 44 Years":1231572,"45 to 64 Years":1215966,"65 Years and Over":641667},{"State":"AK","Under 5 Years":52083,"5 to 13 Years":85640,"14 to 17 Years":42153,"18 to 24 Years":74257,"25 to 44 Years":198724,"45 to 64 Years":183159,"65 Years and Over":50277},{"State":"AZ","Under 5 Years":515910,"5 to 13 Years":828669,"14 to 17 Years":362642,"18 to 24 Years":601943,"25 to 44 Years":1804762,"45 to 64 Years":1523681,"65 Years and Over":862573},{"State":"AR","Under 5 Years":202070,"5 to 13 Years":343207,"14 to 17 Years":157204,"18 to 24 Years":264160,"25 to 44 Years":754420,"45 to 64 Years":727124,"65 Years and Over":407205},{"State":"CA","Under 5 Years":2704659,"5 to 13 Years":4499890,"14 to 17 Years":2159981,"18 to 24 Years":3853788,"25 to 44 Years":10604510,"45 to 64 Years":8819342,"65 Years and Over":4114496},{"State":"CO","Under 5 Years":358280,"5 to 13 Years":587154,"14 to 17 Years":261701,"18 to 24 Years":466194,"25 to 44 Years":1464939,"45 to 64 Years":1290094,"65 Years and Over":511094},{"State":"CT","Under 5 Years":211637,"5 to 13 Years":403658,"14 to 17 Years":196918,"18 to 24 Years":325110,"25 to 44 Years":916955,"45 to 64 Years":968967,"65 Years and Over":478007}];
        var Frame = G2.Frame;
      var frame = new Frame(newData);
      frame = Frame.combinColumns(frame,['Under 5 Years', '5 to 13 Years', '14 to 17 Years', '18 to 24 Years', '25 to 44 Years', '45 to 64 Years', '65 Years and Over'],'population', 'age', 'State');
      frame.addCol('type', function(obj) {
        var key = obj.age;
        var type;
        if (key === 'Under 5 Years' || key === '5 to 13 Years' || key === '14 to 17 Years') {
          type = 'a';
        } else if (key === '18 to 24 Years') {
          type = 'b';
        } else if (key === '25 to 44 Years') {
          type = 'c';
        } else {
          type = 'd';
        }
        return type;
      });
        chart.changeData(frame);
      }, 3000);