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<head>
<title>Highcharts Tutorial</title>
<script src="https://code.highcharts.com/stock/highstock.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/crossfilter2/1.4.7/crossfilter.min.js"></script>
</head>
<body>
<script>
var payments = crossfilter([
{date: "2011-11-14T16:17:54Z", quantity: 2, total: 190, tip: 100, type: "tab"},
{date: "2011-11-14T16:20:19Z", quantity: 2, total: 190, tip: 100, type: "tab"},
{date: "2011-11-14T16:28:54Z", quantity: 1, total: 300, tip: 200, type: "visa"},
{date: "2011-11-14T16:30:43Z", quantity: 2, total: 90, tip: 0, type: "tab"},
{date: "2011-11-14T16:48:46Z", quantity: 2, total: 90, tip: 0, type: "tab"},
{date: "2011-11-14T16:53:41Z", quantity: 2, total: 90, tip: 0, type: "tab"},
{date: "2011-11-14T16:54:06Z", quantity: 1, total: 100, tip: 0, type: "cash"},
{date: "2011-11-14T16:58:03Z", quantity: 2, total: 90, tip: 0, type: "tab"},
{date: "2011-11-14T17:07:21Z", quantity: 2, total: 90, tip: 0, type: "tab"},
{date: "2011-11-14T17:22:59Z", quantity: 2, total: 90, tip: 0, type: "tab"},
{date: "2011-11-14T17:25:45Z", quantity: 2, total: 200, tip: 0, type: "cash"},
{date: "2011-11-14T17:29:52Z", quantity: 1, total: 200, tip: 100, type: "visa"}
]);
//var totalDim=payments.dimension(d=>d.type);//we assign a dimension in which we want to groupby
//var quantityGroups=totalDim.group().reduceSum(d=>d.total)
//var all=payments.groupAll().reduceSum(d=>d.quantity);//in groupAll we do not require dimension
//we want type as cash as we will count number of tip where it is 0
var totalDim=payments.dimension(d=>d.type)
var quantityGroups=totalDim.group().reduce(function (p,v){
p.count=v.tip==0?++p.count:p.count//add data and check where tip==0//p=prv value,v=current value
p.amount=v.tip==0?p.amount=p.amount+v.total:p.amount
return p;
},function (p,v){//remove is used when we use any filter
p.count=v.tip==0?--p.count:p.count
p.total=v.tip==0?p.amount=p.amount-v.total:p.amount
return p;
},
function ()//initialize function
{
return{count:0,amount:0}
}
);
var all=payments.dimension(d=>d.type)
all.filter("tab");
</script>
</body>
</html>
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