google.load('visualization', '1.0', {'packages':['corechart']});
google.setOnLoadCallback(function(){
  var data = new google.visualization.DataTable();
       data.addColumn('string', '日');
       data.addColumn('number', '推測');
       data.addColumn('number', '推測');
       data.addColumn('number', 'iOS前月');
       data.addColumn('number', 'iOS当月');
       data.addRows([
        ['1日',null,322,null,null],
['2日',null,245,null,null],
['3日',null,355,null,null],
['4日',null,353,null,null],
['5日',null,466,null,null],
['6日',675,652,null,null],
['7日',801,368,null,null],
['8日',736,361,null,null],
['9日',869,334,null,null],
['10日',889,333,null,null],
['11日',481,329,null,null],
['12日',646,254,null,null],
['13日',null,279,null,null],
['14日',271,311,null,null],
['15日',258,470,null,null],
['16日',305,555,null,null],
['17日',313,538,null,null],
['18日',474,620,null,null],
['19日',332,561,null,null],
['20日',512,555,null,null],
['21日',648,735,null,null],
['22日',358,824,null,null],
['23日',585,734,null,null],
['24日',259,647,null,null],
['25日',311,604,null,null],
['26日',471,702,null,null],
['27日',339,641,null,null],
['28日',245,745,null,null],
['29日',238,665,null,null],
['30日',205,759,null,null],
['31日',346,null,null,null]
        ]);
  var options = {
    chartArea: {'width':'85%', 'height':'65%', 'left':60 },
    'pointSize': 3,
    hAxis: { titleTextStyle:{italic:false}, format:'#',ticks: [1,5,10,15,20,25,30] },
    vAxis: { title:'2024年4月ランキング',  titleTextStyle:{italic:false}, format:'#',viewWindow:{min:0,max:900},direction:-1 },
    legend: {position: 'top' },
    tooltip: { trigger: 'both' },
    focusTarget: 'category',
    colors:['skyblue','pink','#2980b9','#e74c3c']
  };

  var chart = new google.visualization.LineChart(document.getElementById('graphField'));
  chart.draw(data, options);

  var lastlogday=30 -1 ;
  var lastlogcat=2;

  if(lastlogday>=0){
    chart.setSelection([{
      row: lastlogday,
      column: lastlogcat
    }]);
  
    google.visualization.events.addListener(chart, 'click', function() {
      if(chart.getSelection()[0]){
        //chart.setSelection(null)
      }
    });
  }

});