Geek asks and answers

Highcharts with JSON data and multiple series

I am trying to display a Highcharts line chart, but I have some problems with the series displaying when the page loads. Firebug does not show any errors, so I assume that this is a problem with how my data is structured or how it is transferred to Highcharts.

The data comes from the JSON file, and the variables are loaded using the method that I got from another site ... My data is the numerical value of y for each month, and customTooltip is the additional data that I want to show on hover.

$.getJSON("json/mydata.txt",function(jdata) {

var arr = [];
$.each(jdata, function(key, val) {
    var y = val.y;
    var name = key;
    var customTooltip = val.n;
    arr.push({y: y, customTooltip: customTooltip})
})

var jseries = {name:arr.name, data:[{ny:arr.customTooltip, y:arr.y}]};

var options = {
            chart: {
                renderTo: 'fallcontainer',
                defaultSeriesType: 'line'
                },
            title: {
                text: 'Monthly Rate',
                style: {
                    margin: '10px 100px 0 0' // center it
                }
                },
            subtitle: {
                text: 'Source',
                style: {
                    margin: '0 100px 0 0' // center it
                }
                },
            xAxis: {

                categories: ['Jan 12', 'Feb 12', 'Mar 12']
                },
            yAxis: {
                title: {
                    text: 'Rate',
                },
                plotLines: [{
                    value: 0,
                    width: 1,
                    color: '#808080'
                }],
                min:0
                },
            legend: {
                layout: 'vertical',
                align:'right',
                verticalAlign:'middle',
                x:0,
                title:'Care Setting'
                },
            plotOptions: {
                },
            credits: {
                enabled:false
                },
            series:[]
};

options.series.push(jseries);

var chart = new Highcharts.Chart(options);

});

. , , "y" y "n" "y" . JSONLint , .

{
"Total": {
    "y": [
        9.39,
        90.35,
        90.36,
        92.69,
        93.02,
        90.32,
        90.6,
        9.09,
        9.5,
        90.69,
        9.6,
        90.69,
        9.53,
        6.92
    ],
    "name": "Total",
    "n": [
        962,
        969,
        999,
        233,
        235,
        968,
        999,
        963,
        989,
        293,
        986,
        293,
        989,
        908
    ]
},
"Cat1": {
    "y": [
        6.38,
        6.63,
        90.3,
        9.65,
        90.25,
        8.99,
        92.39,
        99.39,
        9.28,
        99.35,
        99.36,
        93.38,
        8.69,
        8.03
    ],
    "name": "Cat1",
    "n": [
        6,
        6,
        90,
        90,
        90,
        8,
        93,
        93,
        99,
        93,
        93,
        96,
        99,
        9
    ]
}
}
+5
1

: http://api.highcharts.com/highcharts#series.data

, , , tooltip this.point.

,

var seriesArr = [];
$.each(jdata, function(key, data) {
  var series = {name : key, data : []};

  $.each(data.y, function(index, value) {
    series.data.push({y: value });
  });

  $.each(data.n, function(index, value) {
    series.data[index].n = value;
  });
  seriesArr.push(series);
});

:

seriesArr : [{
    name : 'Total',
    data : [
      {y:9.39, n:9.62},
      ...
    ]
  },
...
]

acccess each as this.point.y this.point.n

tooltip: {
  formatter: function () {
    return 'Y value is : ' + this.point.y + '<br>' + 'N value is : ' + this.point.n;
  }
},

: http://jsfiddle.net/sgearhart2/9P5fC/

+8

More articles:


All Articles