0

次の例を見てください。

<script type="text/javascript">
var $j = jQuery.noConflict();

function recalculateUTCValue(startingUTC, add) {
    zeit = new Date(startingUTC);
    zeit.setDate(zeit.getDate()+add);
    return zeit;
}

function calcDateFromUTC(utc) {
    d = new Date(utc);
    return d;
}

function getDaysUntilEnd(utc) {
    var currentTime = new Date();
    var endTime = calcDateFromUTC(utc);
    var diff =  Math.floor(( Date.parse(endTime) - Date.parse(currentTime) ) / 86400000);
    return diff;
}
</script>
<script type="text/javascript">

var highchartsOptions   = Highcharts.setOptions(Highcharts.theme);
var TaskChart; // Chart-Objekt
var container = $j('#chart01')[0];

var TaskDuration          = new Array();


var startingKW = 298;
// Save starting points to javascript variables for HighCharts
var startingUTC = 1288087223364;
// For a given time point id
var startTimePoint = 0;
var endTimePoint = 0;

TaskDuration =  [0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,216.0,216.0,216.0,198.0,134.0,134.0,134.0,171.0,171.0,171.0,149.0,160.5,160.5,160.5];

// Get first value which is not "0"
var firstValue = 0;
for(var i = 0; i < TaskDuration.length; i++) {
    if(TaskDuration[i] != 0) {
        firstValue = i;
        break;
    }
}

// Get largest Y-Value; need for automatically zooming (setExtremes method)
var largest = Math.max.apply(Math, TaskDuration);
var myStartDate;
var myEndDate;
// Check if we have a time point in the query
if(startTimePoint != 0) {
    var myStartDate = calcDateFromUTC(startTimePoint);
    var myEndDate = calcDateFromUTC(endTimePoint);
} else {
    // Otherwise we use the time of first created work item
    var myStartDate = recalculateUTCValue(startingUTC, firstValue); 
    var myEndDate = new Date();
}
</script>
<script type="text/javascript">
$j(document).ready(function() { 
    TaskChart = new Highcharts.Chart({
    credits: {
            enabled: false
    },
    chart: {
      renderTo: "chart01",
      defaultSeriesType: 'line',
      zoomType: 'x',
      events: {
          load: function(event) {
              this.xAxis[0].setExtremes(myStartDate, myEndDate);
              this.yAxis[0].setExtremes(0,largest);
          }
      }
    },
    title: {
      text: "Task Burn Down Chart"
    },
    xAxis: {
        type: 'datetime',
        dateTimeLabelFormats: {
            week: '%e. %b %Y'   
        },
        labels: {
            align: 'right',
            rotation: -60,
            x: 5,
            y: 15
        },
        offset: 10
    },
    yAxis: {
      title: {
        text: "Number of Hours"
      }
    },
    tooltip: {
        formatter: function() {
            return '<b>'+ this.series.name +'</b><br/>' + Highcharts.dateFormat('%d.%m', this.x) +': '+ this.y;;            
        }
    },
    plotOptions: {
        area: { 
           stacking: 'normal',
           lineColor: '#666666',
           lineWidth: 1,
           marker: {
              lineWidth: 1,
              lineColor: '#666666'
           }
        }
     },
    series: [
    {
        name: 'Hours',
        pointStart: startingUTC,
        pointInterval: 24*60*60*1000, 
        data: TaskDuration
    }, 
    { 
        type: 'line',
        name: 'Regression Line',
        data: [[myStartDate, 216], [myEndDate, 50]],
        marker: {
            enabled: false
        },
        states: {
            hover: {
                lineWidth: 0
            }
        },
        enableMouseTracking: false
    }]
  });

});
</script>

http://jsfiddle.net/JwmuT/8/

目標は、1月26日のX-Valueから開始点を持ち、2月7日のX-Valueを終点とするHighchartラインを作成することです。対応するY値は「260」と「0」です。

HighChartsのポイントにこれらを使用して単純な線を作成するにはどうすればよいですか？たぶん、Highchartsはその場で線形回帰を行うことができますか？！

このデモを見つけましたが、日付形式でX値を正しく渡す方法がわかりません。

4

1 に答える 1

1

Highcharts は、いかなる種類の回帰線またはトレンド ラインも計算しません。投稿した例では、データは前に計算され、Highcharts はそれを表示するだけです。ただし、トレンドライン用の既知のプラグインがあります: https://github.com/virtualstaticvoid/highcharts_trendline

于 2013-02-07T15:04:20.893 に答える