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,null,14,10],
['2日',null,null,14,13],
['3日',null,null,9,16],
['4日',null,null,9,14],
['5日',null,null,10,16],
['6日',null,null,12,14],
['7日',null,null,11,12],
['8日',null,null,11,11],
['9日',null,null,10,11],
['10日',null,null,7,14],
['11日',null,null,7,18],
['12日',null,null,7,17],
['13日',null,null,8,12],
['14日',null,null,9,16],
['15日',null,null,12,13],
['16日',null,null,12,13],
['17日',null,null,8,12],
['18日',null,null,7,15],
['19日',null,null,9,11],
['20日',null,null,9,8],
['21日',null,null,12,6],
['22日',null,null,14,6],
['23日',null,null,17,9],
['24日',null,null,11,10],
['25日',null,null,11,15],
['26日',null,null,13,17],
['27日',null,null,15,15],
['28日',null,null,16,14],
['29日',null,null,19,14],
['30日',null,15,16,15],
['31日',null,null,13,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:20},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=4;

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

});