Secondary y axis values not displayed in Google Charts -

i trying use secondary y axis google charts.

i have code:

    arrdata.addrows([         [observationdatetime, observationvaluecd4, observationvalueviralload]     ]); } // start of drawchart()  var options2 = {     title: 'cd4 && viralload v/s datetime',     vaxes: [{         title: 'cd4',         textstyle: {             color: 'blue'         }     }, // axis 0     {         title: 'viral load',         textstyle: {             color: 'red'         }     } // axis 1     ],       haxis: {         title: "date"     },       series: {         0: {             type: "bars",             targetaxisindex: 0         },         1: {             type: "line",             targetaxisindex: 1         }     } }; 

however, bit confused rendered: renders blue straight vertical lines pointing , no red line.though secondary y axes in rendered.

what expect: expect blue bars values on left y axis , red line values on right y axes.

without more code or sample data can't sure issue options seem correct want.

google.load("visualization", "1", {      packages: ["corechart"]  });  google.setonloadcallback(drawchart);    function drawchart() {      var data = google.visualization.arraytodatatable([          ["observationdatetime", "observationvaluecd4", "observationvalueviralload"],          [new date(2015,1,1), 9, 4],          [new date(2015,2,1), 11, 6],          [new date(2015,3,1), 20, 2],          [new date(2015,4,1), 21, 3]      ]);          var options2 = {          title: 'cd4 && viralload v/s datetime',          vaxes: [{              title: 'cd4',              textstyle: {                  color: 'blue'              }          }, // axis 0          {              title: 'viral load',              textstyle: {                  color: 'red'              }          } // axis 1          ],                      haxis: {              title: "date"          },                      series: {              0: {                  type: "bars",                  targetaxisindex: 0              },              1: {                  type: "line",                  targetaxisindex: 1              }          }      };            var chart = new google.visualization.linechart(document.getelementbyid("chart"));      chart.draw(data, options2);  }    // start of drawchart()

<script type="text/javascript" src="https://www.google.com/jsapi"></script>  <div id="chart" style="width: 900px; height: 300px;"></div>