google.load('visualization', '1.0', {'packages':['corechart']});
google.setOnLoadCallback(function(){
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       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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['2020-08-08',146572,null,608,null,null],
['2020-08-09',146709,null,774,null,null],
['2020-08-10',146784,null,940,null,null],
['2020-08-11',146839,null,null,null,null],
['2020-08-12',146839,null,420,null,null],
['2020-08-13',147004,null,593,null,null],
['2020-08-14',147320,null,864,null,null],
['2020-08-15',147454,null,906,null,null],
['2020-08-16',147717,null,null,null,null],
['2020-08-17',147872,null,951,null,null],
['2020-08-18',148028,null,818,null,null],
['2020-08-19',148246,null,865,null,null],
['2020-08-20',148381,null,null,null,null],
['2020-08-21',148508,null,519,null,null],
['2020-08-22',148594,null,791,null,null],
['2020-08-23',148654,null,983,null,null],
['2020-08-24',148754,null,null,null,null],
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['2020-08-30',149068,null,null,null,null],
['2020-08-31',149146,null,null,null,null],
['2020-09-01',149266,null,null,null,null],
['2020-09-02',149266,null,886,null,null],
['2020-09-03',149348,null,912,null,null],
['2020-09-04',149449,null,994,null,null],
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['2020-09-15',150314,null,null,null,null],
['2020-09-16',150704,null,null,null,null],
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['2020-09-30',151887,null,null,null,null],
['2020-10-01',151945,null,null,null,null],
['2020-10-02',151984,null,518,null,null],
['2020-10-03',152015,null,641,null,null],
['2020-10-04',152063,null,724,null,null]
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    'pointSize': 3,
    legend: {position: 'top' },
    vAxes:[
      {direction:1},
      {direction:-1,viewWindow:{min:0,max:900}}
    ],
    series: {
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        targetAxisIndex: 0,
      },
      1:{
        type: 'line',
        color: 'seagreen',                
        targetAxisIndex: 1,
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      2:{
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        targetAxisIndex: 1,
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    },
    tooltip: { trigger: 'both' },
    focusTarget: 'category',
    colors:['#2980b9','#e74c3c']
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  var chart = new google.visualization.ComboChart(document.getElementById('graphField'));
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  google.visualization.events.addListener(chart, 'click', function() {
    if(chart.getSelection()[0]){
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});