google.load('visualization', '1.0', {'packages':['corechart']});
google.setOnLoadCallback(function(){
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       data.addColumn('string', '日');
       data.addColumn('number', 'DL数');
       data.addColumn('number', 'Googleセルラン');
       data.addColumn('number', 'iOSセルラン');
       data.addColumn({type:'string', role:'annotation'});
       data.addColumn({type:'string', role:'annotationText'});
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['2020-12-23',25851600,null,375,null,null],
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['2020-12-26',25967189,null,363,null,null],
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['2020-12-29',26099041,null,378,null,null],
['2020-12-30',26144367,null,295,null,null],
['2020-12-31',26169464,null,281,null,null],
['2021-01-01',26212285,null,297,null,null],
['2021-01-02',26261816,null,447,null,null],
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['2021-02-16',27266964,null,417,null,null],
['2021-02-17',27266964,null,378,null,null],
['2021-02-18',27299877,null,381,null,null]
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    chartArea: {'width':'85%', 'height':'65%', 'left':60 },
    'pointSize': 3,
    legend: {position: 'top' },
    vAxes:[
      {direction:1},
      {direction:-1,viewWindow:{min:0,max:500}}
    ],
    series: {
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        type: 'bars',
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      },
      1:{
        type: 'line',
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        targetAxisIndex: 1,
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      2:{
        type: 'line',
        color: 'red',                
        targetAxisIndex: 1,
      },
    },
    tooltip: { trigger: 'both' },
    focusTarget: 'category',
    colors:['#2980b9','#e74c3c']
  };
  var chart = new google.visualization.ComboChart(document.getElementById('graphField'));
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  google.visualization.events.addListener(chart, 'click', function() {
    if(chart.getSelection()[0]){
      chart.setSelection(null)
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});