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Days-Hours Heatmap
(function(){
//UI configuration
var itemSize = 18,
cellSize = itemSize-1,
width = 800,
height = 800,
margin = {top:20,right:20,bottom:20,left:25};
//formats
var hourFormat = d3.time.format('%H'),
dayFormat = d3.time.format('%j'),
timeFormat = d3.time.format('%Y-%m-%dT%X'),
monthDayFormat = d3.time.format('%m.%d');
//data vars for rendering
var dateExtent = null,
data = null,
dayOffset = 0,
colorCalibration = ['#f6faaa','#FEE08B','#FDAE61','#F46D43','#D53E4F','#9E0142'],
dailyValueExtent = {};
//axises and scales
var axisWidth = 0 ,
axisHeight = itemSize*24,
xAxisScale = d3.time.scale(),
xAxis = d3.svg.axis()
.orient('top')
.ticks(d3.time.days,3)
.tickFormat(monthDayFormat),
yAxisScale = d3.scale.linear()
.range([0,axisHeight])
.domain([0,24]),
yAxis = d3.svg.axis()
.orient('left')
.ticks(5)
.tickFormat(d3.format('02d'))
.scale(yAxisScale);
initCalibration();
var svg = d3.select('[role="heatmap"]');
var heatmap = svg
.attr('width',width)
.attr('height',height)
.append('g')
.attr('width',width-margin.left-margin.right)
.attr('height',height-margin.top-margin.bottom)
.attr('transform','translate('+margin.left+','+margin.top+')');
var rect = null;
d3.json('pm25.json',function(err,data){
data = data.data;
data.forEach(function(valueObj){
valueObj['date'] = timeFormat.parse(valueObj['timestamp']);
var day = valueObj['day'] = monthDayFormat(valueObj['date']);
var dayData = dailyValueExtent[day] = (dailyValueExtent[day] || [1000,-1]);
var pmValue = valueObj['value']['PM2.5'];
dayData[0] = d3.min([dayData[0],pmValue]);
dayData[1] = d3.max([dayData[1],pmValue]);
});
dateExtent = d3.extent(data,function(d){
return d.date;
});
axisWidth = itemSize*(dayFormat(dateExtent[1])-dayFormat(dateExtent[0])+1);
//render axises
xAxis.scale(xAxisScale.range([0,axisWidth]).domain([dateExtent[0],dateExtent[1]]));
svg.append('g')
.attr('transform','translate('+margin.left+','+margin.top+')')
.attr('class','x axis')
.call(xAxis)
.append('text')
.text('date')
.attr('transform','translate('+axisWidth+',-10)');
svg.append('g')
.attr('transform','translate('+margin.left+','+margin.top+')')
.attr('class','y axis')
.call(yAxis)
.append('text')
.text('time')
.attr('transform','translate(-10,'+axisHeight+') rotate(-90)');
//render heatmap rects
dayOffset = dayFormat(dateExtent[0]);
rect = heatmap.selectAll('rect')
.data(data)
.enter().append('rect')
.attr('width',cellSize)
.attr('height',cellSize)
.attr('x',function(d){
return itemSize*(dayFormat(d.date)-dayOffset);
})
.attr('y',function(d){
return hourFormat(d.date)*itemSize;
})
.attr('fill','#ffffff');
rect.filter(function(d){ return d.value['PM2.5']>0;})
.append('title')
.text(function(d){
return monthDayFormat(d.date)+' '+d.value['PM2.5'];
});
renderColor();
});
function initCalibration(){
d3.select('[role="calibration"] [role="example"]').select('svg')
.selectAll('rect').data(colorCalibration).enter()
.append('rect')
.attr('width',cellSize)
.attr('height',cellSize)
.attr('x',function(d,i){
return i*itemSize;
})
.attr('fill',function(d){
return d;
});
//bind click event
d3.selectAll('[role="calibration"] [name="displayType"]').on('click',function(){
renderColor();
});
}
function renderColor(){
var renderByCount = document.getElementsByName('displayType')[0].checked;
rect
.filter(function(d){
return (d.value['PM2.5']>=0);
})
.transition()
.delay(function(d){
return (dayFormat(d.date)-dayOffset)*15;
})
.duration(500)
.attrTween('fill',function(d,i,a){
//choose color dynamicly
var colorIndex = d3.scale.quantize()
.range([0,1,2,3,4,5])
.domain((renderByCount?[0,500]:dailyValueExtent[d.day]));
return d3.interpolate(a,colorCalibration[colorIndex(d.value['PM2.5'])]);
});
}
//extend frame height in `http://bl.ocks.org/`
d3.select(self.frameElement).style("height", "600px");
})();
<!DOCTYPE html>
<html>
<head>
<title>Days Hours Heatmap</title>
<meta charset="utf-8"/>
<script type="text/javascript" src="http://d3js.org/d3.v3.js"></script>
<link rel="stylesheet" href="style.css"/>
</head>
<body>
<div class="days-hours-heatmap">
<!-- calibration and render type controller -->
<div class="calibration" role="calibration">
<div class="group" role="example">
<svg width="120" height="17">
</svg>
<div role="description" class="description">
<label>Less</label>
<label>More</label>
</div>
</div>
<div role="toggleDisplay" class="display-control">
<div>
<input type="radio" name="displayType" checked/>
<label>count</label>
</div>
<div>
<input type="radio" name="displayType"/>
<label>daily</label>
</div>
</div>
</div>
<!-- heatmap -->
<svg role="heatmap" class="heatmap"></svg>
</div>
<script type="text/javascript" src="app.js"></script>
</body>
</html>
{
"data":[{"timestamp": "2014-09-25T00:00:00", "value": {"PM2.5": 30.22}}, {"timestamp": "2014-09-25T01:00:00", "value": {"PM2.5": 41.61}}, {"timestamp": "2014-09-25T02:00:00", "value": {"PM2.5": 50.71}}, {"timestamp": "2014-09-25T03:00:00", "value": {"PM2.5": 57.34}}, {"timestamp": "2014-09-25T04:00:00", "value": {"PM2.5": 79.64}}, {"timestamp": "2014-09-25T05:00:00", "value": {"PM2.5": 76.93}}, {"timestamp": "2014-09-25T06:00:00", "value": {"PM2.5": 106.45}}, {"timestamp": "2014-09-25T07:00:00", "value": {"PM2.5": 79.72}}, {"timestamp": "2014-09-25T08:00:00", "value": {"PM2.5": 74.23}}, {"timestamp": "2014-09-25T09:00:00", "value": {"PM2.5": 90.48}}, {"timestamp": "2014-09-25T10:00:00", "value": {"PM2.5": 94.74}}, {"timestamp": "2014-09-25T11:00:00", "value": {"PM2.5": 85.97}}, {"timestamp": "2014-09-25T12:00:00", "value": {"PM2.5": 69.23}}, {"timestamp": "2014-09-25T13:00:00", "value": {"PM2.5": 82.63}}, {"timestamp": "2014-09-25T14:00:00", "value": {"PM2.5": 244.89}}, {"timestamp": "2014-09-25T15:00:00", "value": {"PM2.5": 363.18}}, {"timestamp": "2014-09-25T16:00:00", "value": {"PM2.5": 397.89}}, {"timestamp": "2014-09-25T17:00:00", "value": {"PM2.5": 344.67}}, {"timestamp": "2014-09-25T18:00:00", "value": {"PM2.5": 328.47}}, {"timestamp": "2014-09-25T19:00:00", "value": {"PM2.5": 305.47}}, {"timestamp": "2014-09-25T20:00:00", "value": {"PM2.5": 344.87}}, {"timestamp": "2014-09-25T21:00:00", "value": {"PM2.5": 336.82}}, {"timestamp": "2014-09-25T22:00:00", "value": {"PM2.5": 291.29}}, {"timestamp": "2014-09-25T23:00:00", "value": {"PM2.5": 260.16}}, {"timestamp": "2014-09-26T00:00:00", "value": {"PM2.5": 251.12}}, {"timestamp": "2014-09-26T01:00:00", "value": {"PM2.5": 213.73}}, {"timestamp": "2014-09-26T02:00:00", "value": {"PM2.5": 188.96}}, {"timestamp": "2014-09-26T03:00:00", "value": {"PM2.5": 170.37}}, {"timestamp": "2014-09-26T04:00:00", "value": {"PM2.5": 152.53}}, {"timestamp": "2014-09-26T05:00:00", "value": {"PM2.5": 145.44}}, {"timestamp": "2014-09-26T06:00:00", "value": {"PM2.5": 144.09}}, {"timestamp": "2014-09-26T07:00:00", "value": {"PM2.5": 169.71}}, {"timestamp": "2014-09-26T08:00:00", "value": {"PM2.5": 207.33}}, {"timestamp": "2014-09-26T09:00:00", "value": {"PM2.5": 208.24}}, {"timestamp": "2014-09-26T10:00:00", "value": {"PM2.5": 215.42}}, {"timestamp": "2014-09-26T11:00:00", "value": {"PM2.5": 208.86}}, {"timestamp": "2014-09-26T12:00:00", "value": {"PM2.5": 239.67}}, {"timestamp": "2014-09-26T13:00:00", "value": {"PM2.5": 242.51}}, {"timestamp": "2014-09-26T14:00:00", "value": {"PM2.5": 252.05}}, {"timestamp": "2014-09-26T15:00:00", "value": {"PM2.5": 239.24}}, {"timestamp": "2014-09-26T16:00:00", "value": {"PM2.5": 254.14}}, {"timestamp": "2014-09-26T17:00:00", "value": {"PM2.5": 287.29}}, {"timestamp": "2014-09-26T18:00:00", "value": {"PM2.5": 280.43}}, {"timestamp": "2014-09-26T19:00:00", "value": {"PM2.5": 294.95}}, {"timestamp": "2014-09-26T20:00:00", "value": {"PM2.5": 269.68}}, {"timestamp": "2014-09-26T21:00:00", "value": {"PM2.5": 105.62}}, {"timestamp": "2014-09-26T22:00:00", "value": {"PM2.5": 94.32}}, {"timestamp": "2014-09-26T23:00:00", "value": {"PM2.5": 66.55}}, {"timestamp": "2014-09-27T00:00:00", "value": {"PM2.5": 76.33}}, {"timestamp": "2014-09-27T01:00:00", "value": {"PM2.5": 27.83}}, {"timestamp": "2014-09-27T02:00:00", "value": {"PM2.5": 62.01}}, {"timestamp": "2014-09-27T03:00:00", "value": {"PM2.5": 43.96}}, {"timestamp": "2014-09-27T04:00:00", "value": {"PM2.5": 26.89}}, {"timestamp": "2014-09-27T05:00:00", "value": {"PM2.5": 26.23}}, {"timestamp": "2014-09-27T06:00:00", "value": {"PM2.5": 21.32}}, {"timestamp": "2014-09-27T07:00:00", "value": {"PM2.5": 20.81}}, {"timestamp": "2014-09-27T08:00:00", "value": {"PM2.5": 24.04}}, {"timestamp": "2014-09-27T09:00:00", "value": {"PM2.5": 21.65}}, {"timestamp": "2014-09-27T10:00:00", "value": {"PM2.5": 10.51}}, {"timestamp": "2014-09-27T11:00:00", "value": {"PM2.5": 8.92}}, {"timestamp": "2014-09-27T12:00:00", "value": {"PM2.5": 6.97}}, {"timestamp": "2014-09-27T13:00:00", "value": {"PM2.5": 4.3}}, {"timestamp": "2014-09-27T14:00:00", "value": {"PM2.5": 5.38}}, {"timestamp": "2014-09-27T15:00:00", "value": {"PM2.5": 12.7}}, {"timestamp": "2014-09-27T16:00:00", "value": {"PM2.5": 11.07}}, {"timestamp": "2014-09-27T17:00:00", "value": {"PM2.5": 26.12}}, {"timestamp": "2014-09-27T18:00:00", "value": {"PM2.5": 155.54}}, {"timestamp": "2014-09-27T19:00:00", "value": {"PM2.5": 16.69}}, {"timestamp": "2014-09-27T20:00:00", "value": {"PM2.5": 10.73}}, {"timestamp": "2014-09-27T21:00:00", "value": {"PM2.5": 10.09}}, {"timestamp": "2014-09-27T22:00:00", "value": {"PM2.5": 17.9}}, {"timestamp": "2014-09-27T23:00:00", "value": {"PM2.5": 21.24}}, {"timestamp": "2014-09-28T00:00:00", "value": {"PM2.5": 22.61}}, {"timestamp": "2014-09-28T01:00:00", "value": {"PM2.5": 27.05}}, {"timestamp": "2014-09-28T02:00:00", "value": {"PM2.5": 24.34}}, {"timestamp": "2014-09-28T03:00:00", "value": {"PM2.5": 19.63}}, {"timestamp": "2014-09-28T04:00:00", "value": {"PM2.5": 26.33}}, {"timestamp": "2014-09-28T05:00:00", "value": {"PM2.5": 23.62}}, {"timestamp": "2014-09-28T06:00:00", "value": {"PM2.5": 21.46}}, {"timestamp": "2014-09-28T07:00:00", "value": {"PM2.5": 24.73}}, {"timestamp": "2014-09-28T08:00:00", "value": {"PM2.5": 44.34}}, {"timestamp": "2014-09-28T09:00:00", "value": {"PM2.5": 35.01}}, {"timestamp": "2014-09-28T10:00:00", "value": {"PM2.5": 33.54}}, {"timestamp": "2014-09-28T11:00:00", "value": {"PM2.5": 38.61}}, {"timestamp": "2014-09-28T12:00:00", "value": {"PM2.5": 80.41}}, {"timestamp": "2014-09-28T13:00:00", "value": {"PM2.5": 77.11}}, {"timestamp": "2014-09-28T14:00:00", "value": {"PM2.5": 74.43}}, {"timestamp": "2014-09-28T15:00:00", "value": {"PM2.5": 97.76}}, {"timestamp": "2014-09-28T16:00:00", "value": {"PM2.5": 121.23}}, {"timestamp": "2014-09-28T17:00:00", "value": {"PM2.5": 151.39}}, {"timestamp": "2014-09-28T18:00:00", "value": {"PM2.5": 145.58}}, {"timestamp": "2014-09-28T19:00:00", "value": {"PM2.5": 133.08}}, {"timestamp": "2014-09-28T20:00:00", "value": {"PM2.5": 111.6}}, {"timestamp": "2014-09-28T21:00:00", "value": {"PM2.5": 118.36}}, {"timestamp": "2014-09-28T22:00:00", "value": {"PM2.5": 117.77}}, {"timestamp": "2014-09-28T23:00:00", "value": {"PM2.5": 125.95}}, {"timestamp": "2014-09-29T00:00:00", "value": {"PM2.5": 126.74}}, {"timestamp": "2014-09-29T01:00:00", "value": {"PM2.5": 121.47}}, {"timestamp": "2014-09-29T02:00:00", "value": {"PM2.5": 113.75}}, {"timestamp": "2014-09-29T03:00:00", "value": {"PM2.5": 117.12}}, {"timestamp": "2014-09-29T04:00:00", "value": {"PM2.5": 130.76}}, {"timestamp": "2014-09-29T05:00:00", "value": {"PM2.5": 126.4}}, {"timestamp": "2014-09-29T06:00:00", "value": {"PM2.5": 136.94}}, {"timestamp": "2014-09-29T07:00:00", "value": {"PM2.5": 129.97}}, {"timestamp": "2014-09-29T08:00:00", "value": {"PM2.5": 155.04}}, {"timestamp": "2014-09-29T09:00:00", "value": {"PM2.5": 112.96}}, {"timestamp": "2014-09-29T10:00:00", "value": {"PM2.5": 23.58}}, {"timestamp": "2014-09-29T11:00:00", "value": {"PM2.5": 15.25}}, {"timestamp": "2014-09-29T12:00:00", "value": {"PM2.5": 14.04}}, {"timestamp": "2014-09-29T13:00:00", "value": {"PM2.5": 10.1}}, {"timestamp": "2014-09-29T14:00:00", "value": {"PM2.5": 6.55}}, {"timestamp": "2014-09-29T15:00:00", "value": {"PM2.5": 5.64}}, {"timestamp": "2014-09-29T16:00:00", "value": {"PM2.5": 6.75}}, {"timestamp": "2014-09-29T17:00:00", "value": {"PM2.5": 7.12}}, {"timestamp": "2014-09-29T18:00:00", "value": {"PM2.5": 8.91}}, {"timestamp": "2014-09-29T19:00:00", "value": {"PM2.5": 9.57}}, {"timestamp": "2014-09-29T20:00:00", "value": {"PM2.5": 12.11}}, {"timestamp": "2014-09-29T21:00:00", "value": {"PM2.5": 10.14}}, {"timestamp": "2014-09-29T22:00:00", "value": {"PM2.5": 7.79}}, {"timestamp": "2014-09-29T23:00:00", "value": {"PM2.5": 6.14}}, {"timestamp": "2014-09-30T00:00:00", "value": {"PM2.5": 18.59}}, {"timestamp": "2014-09-30T01:00:00", "value": {"PM2.5": 22.16}}, {"timestamp": "2014-09-30T02:00:00", "value": {"PM2.5": 16.92}}, {"timestamp": "2014-09-30T03:00:00", "value": {"PM2.5": 25.11}}, {"timestamp": "2014-09-30T04:00:00", "value": {"PM2.5": 40.97}}, {"timestamp": "2014-09-30T05:00:00", "value": {"PM2.5": 45.79}}, {"timestamp": "2014-09-30T06:00:00", "value": {"PM2.5": 36.7}}, {"timestamp": "2014-09-30T07:00:00", "value": {"PM2.5": 14.18}}, {"timestamp": "2014-09-30T08:00:00", "value": {"PM2.5": 24.86}}, {"timestamp": "2014-09-30T09:00:00", "value": {"PM2.5": 20.39}}, {"timestamp": "2014-09-30T10:00:00", "value": {"PM2.5": 19.79}}, {"timestamp": "2014-09-30T11:00:00", "value": {"PM2.5": 19.46}}, {"timestamp": "2014-09-30T12:00:00", "value": {"PM2.5": 31.15}}, {"timestamp": "2014-09-30T13:00:00", "value": {"PM2.5": 24.06}}, {"timestamp": "2014-09-30T14:00:00", "value": {"PM2.5": 30.12}}, {"timestamp": "2014-09-30T15:00:00", "value": {"PM2.5": 31.57}}, {"timestamp": "2014-09-30T16:00:00", "value": {"PM2.5": 34.88}}, {"timestamp": "2014-09-30T17:00:00", "value": {"PM2.5": 41.16}}, {"timestamp": "2014-09-30T18:00:00", "value": {"PM2.5": 47.41}}, {"timestamp": "2014-09-30T19:00:00", "value": {"PM2.5": 58.39}}, {"timestamp": "2014-09-30T20:00:00", "value": {"PM2.5": 42.18}}, {"timestamp": "2014-09-30T21:00:00", "value": {"PM2.5": 40.16}}, {"timestamp": "2014-09-30T22:00:00", "value": {"PM2.5": 39.45}}, {"timestamp": "2014-09-30T23:00:00", "value": {"PM2.5": 37.49}}, {"timestamp": "2014-10-01T00:00:00", "value": {"PM2.5": 42.77}}, {"timestamp": "2014-10-01T01:00:00", "value": {"PM2.5": 43.73}}, {"timestamp": "2014-10-01T02:00:00", "value": {"PM2.5": 41.56}}, {"timestamp": "2014-10-01T03:00:00", "value": {"PM2.5": 40.69}}, {"timestamp": "2014-10-01T04:00:00", "value": {"PM2.5": 42.65}}, {"timestamp": "2014-10-01T05:00:00", "value": {"PM2.5": 43.86}}, {"timestamp": "2014-10-01T06:00:00", "value": {"PM2.5": 40.06}}, {"timestamp": "2014-10-01T07:00:00", "value": {"PM2.5": 58.56}}, {"timestamp": "2014-10-01T08:00:00", "value": {"PM2.5": 57.51}}, {"timestamp": "2014-10-01T09:00:00", "value": {"PM2.5": 69.77}}, {"timestamp": "2014-10-01T10:00:00", "value": {"PM2.5": 76.35}}, {"timestamp": "2014-10-01T11:00:00", "value": {"PM2.5": 72.26}}, {"timestamp": "2014-10-01T12:00:00", "value": {"PM2.5": 95.8}}, {"timestamp": "2014-10-01T13:00:00", "value": {"PM2.5": 104.79}}, {"timestamp": "2014-10-01T14:00:00", "value": {"PM2.5": 93.45}}, {"timestamp": "2014-10-01T15:00:00", "value": {"PM2.5": 81.69}}, {"timestamp": "2014-10-01T16:00:00", "value": {"PM2.5": 88.27}}, {"timestamp": "2014-10-01T17:00:00", "value": {"PM2.5": 86.08}}, {"timestamp": "2014-10-01T18:00:00", "value": {"PM2.5": 78.72}}, {"timestamp": "2014-10-01T19:00:00", "value": {"PM2.5": 82.31}}, {"timestamp": "2014-10-01T20:00:00", "value": {"PM2.5": 73.06}}, {"timestamp": "2014-10-01T21:00:00", "value": {"PM2.5": 62.12}}, {"timestamp": "2014-10-01T22:00:00", "value": {"PM2.5": 54.43}}, {"timestamp": "2014-10-01T23:00:00", "value": {"PM2.5": 41.78}}, {"timestamp": "2014-10-02T00:00:00", "value": {"PM2.5": 34.93}}, {"timestamp": "2014-10-02T01:00:00", "value": {"PM2.5": 33.22}}, {"timestamp": "2014-10-02T02:00:00", "value": {"PM2.5": 33.72}}, {"timestamp": "2014-10-02T03:00:00", "value": {"PM2.5": 33.46}}, {"timestamp": "2014-10-02T04:00:00", "value": {"PM2.5": 25.31}}, {"timestamp": "2014-10-02T05:00:00", "value": {"PM2.5": 22.46}}, {"timestamp": "2014-10-02T06:00:00", "value": {"PM2.5": 22.94}}, {"timestamp": "2014-10-02T07:00:00", "value": {"PM2.5": 20.19}}, {"timestamp": "2014-10-02T08:00:00", "value": {"PM2.5": 26.69}}, {"timestamp": "2014-10-02T09:00:00", "value": {"PM2.5": 17.44}}, {"timestamp": "2014-10-02T10:00:00", "value": {"PM2.5": 14.73}}, {"timestamp": "2014-10-02T11:00:00", "value": {"PM2.5": 17.8}}, {"timestamp": "2014-10-02T12:00:00", "value": {"PM2.5": 19.19}}, {"timestamp": "2014-10-02T13:00:00", "value": {"PM2.5": 16.25}}, {"timestamp": "2014-10-02T14:00:00", "value": {"PM2.5": 18.47}}, {"timestamp": "2014-10-02T15:00:00", "value": {"PM2.5": 16.45}}, {"timestamp": "2014-10-02T16:00:00", "value": {"PM2.5": 30.11}}, {"timestamp": "2014-10-02T17:00:00", "value": {"PM2.5": 48.26}}, {"timestamp": "2014-10-02T18:00:00", "value": {"PM2.5": 38.79}}, {"timestamp": "2014-10-02T19:00:00", "value": {"PM2.5": 27.05}}, {"timestamp": "2014-10-02T20:00:00", "value": {"PM2.5": 14.22}}, {"timestamp": "2014-10-02T21:00:00", "value": {"PM2.5": 11.8}}, {"timestamp": "2014-10-02T22:00:00", "value": {"PM2.5": 10.11}}, {"timestamp": "2014-10-02T23:00:00", "value": {"PM2.5": 7.61}}, {"timestamp": "2014-10-03T00:00:00", "value": {"PM2.5": 8.89}}, {"timestamp": "2014-10-03T01:00:00", "value": {"PM2.5": 12.88}}, {"timestamp": "2014-10-03T02:00:00", "value": {"PM2.5": 19.39}}, {"timestamp": "2014-10-03T03:00:00", "value": {"PM2.5": 20.57}}, {"timestamp": "2014-10-03T04:00:00", "value": {"PM2.5": 18.02}}, {"timestamp": "2014-10-03T05:00:00", "value": {"PM2.5": 14.1}}, {"timestamp": 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"value": {"PM2.5": 47.4}}, {"timestamp": "2014-10-16T15:00:00", "value": {"PM2.5": 51.82}}, {"timestamp": "2014-10-16T16:00:00", "value": {"PM2.5": 68.41}}, {"timestamp": "2014-10-16T17:00:00", "value": {"PM2.5": 67.81}}, {"timestamp": "2014-10-16T18:00:00", "value": {"PM2.5": 200.82}}, {"timestamp": "2014-10-16T19:00:00", "value": {"PM2.5": 49.54}}, {"timestamp": "2014-10-16T20:00:00", "value": {"PM2.5": 60.66}}, {"timestamp": "2014-10-16T21:00:00", "value": {"PM2.5": 61.39}}, {"timestamp": "2014-10-16T22:00:00", "value": {"PM2.5": 61.92}}, {"timestamp": "2014-10-16T23:00:00", "value": {"PM2.5": 64.39}}]
}
body{font-family:arial, 'Hiragino Sans GB',Tahoma, Arial, Helvetica, STHeiti;font-size: 14px;}
.days-hours-heatmap{padding: 20px 0 20px 0;width: 500px;margin: 0 auto;}
.days-hours-heatmap .calibration{margin-bottom: 15px;width:400px;}
.days-hours-heatmap .calibration .group{display: inline-block;}
.days-hours-heatmap .calibration .description{width:108px;}
.days-hours-heatmap .calibration .description>label:last-child{float:right;}
.days-hours-heatmap .calibration>.display-control{float:right;}
.days-hours-heatmap .calibration>.display-control label{vertical-align: top;}
.days-hours-heatmap .calibration>.display-control input[type='radio']{cursor: pointer;}
.days-hours-heatmap .heatmap .axis path{display: none;}
.days-hours-heatmap .heatmap .axis line{fill: none;stroke: #000;shape-rendering: crispEdges;}
.days-hours-heatmap .heatmap .axis text{font-size: 12px}
@prya03
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prya03 commented Jan 12, 2016

What does count and daily options in the heat-map actually signify?

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