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,751,null,null],
['2日',null,477,null,null],
['3日',null,448,null,null],
['4日',null,438,null,null],
['5日',null,417,null,null],
['6日',null,402,null,null],
['7日',253,423,null,null],
['8日',355,494,null,null],
['9日',343,504,null,null],
['10日',401,634,null,null],
['11日',485,598,null,null],
['12日',381,363,null,null],
['13日',385,446,null,null],
['14日',351,546,null,null],
['15日',360,523,null,null],
['16日',356,393,null,null],
['17日',378,395,null,null],
['18日',424,468,null,null],
['19日',350,374,null,null],
['20日',318,459,null,null],
['21日',344,580,null,null],
['22日',215,470,null,null],
['23日',251,339,null,null],
['24日',382,431,null,null],
['25日',520,450,null,null],
['26日',359,321,null,null],
['27日',295,350,null,null],
['28日',363,418,null,null],
['29日',403,497,null,null],
['30日',513,583,null,null],
['31日',690,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:800},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)
      }
    });
  }

});