Warning: file_get_contents(/data/phpspider/zhask/data//catemap/8/linq/3.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
如何使用HighChart从CSV中选择哪些列作为图表?_Csv_Highcharts - Fatal编程技术网

如何使用HighChart从CSV中选择哪些列作为图表?

如何使用HighChart从CSV中选择哪些列作为图表?,csv,highcharts,Csv,Highcharts,我正在尝试从CSV文件创建一个图形,该文件包含每个时间值的多个数据值。我想绘制其中两个数据点的图形,但还无法确定如何将CSV文件导入阵列 这是我的CSV示例 Year,Month,Day,Hour,Time,kWh,Savings,Total kWh 2013,02,06,11,11:00,0,0,308135 2013,02,06,11,11:59,15,1.875,308150 2013,02,06,12,12:59,27,3.375,308177 2013,02,06,13,13:59,3

我正在尝试从CSV文件创建一个图形,该文件包含每个时间值的多个数据值。我想绘制其中两个数据点的图形,但还无法确定如何将CSV文件导入阵列

这是我的CSV示例

Year,Month,Day,Hour,Time,kWh,Savings,Total kWh
2013,02,06,11,11:00,0,0,308135
2013,02,06,11,11:59,15,1.875,308150
2013,02,06,12,12:59,27,3.375,308177
2013,02,06,13,13:59,34,4.25,308211
2013,02,06,14,14:59,32,4,308243
我想在y轴和x轴上绘制kWh节省量。任何帮助都将不胜感激。我正在使用标准代码为Highcharts导入CSV文件,但我确信我需要以某种方式对其进行更改。谢谢

    var options = {
        chart: {
            renderTo: 'container',
            defaultSeriesType: 'column'
        },
        title: {
            text: 'Wind Turbine Hourly Production'
        },
        xAxis: {
            categories: []
        },
        yAxis: {
            title: {
                text: 'kWh'
            }
        },
        series: []
    };

    /*
     Load the data from the CSV file. This is the contents of the file:

        Apples,Pears,Oranges,Bananas,Plums
        John,8,4,6,5
        Jane,3,4,2,3
        Joe,86,76,79,77
        Janet,3,16,13,15

     */ 
    $.get('medford-hour.csv', function(data) {
        // Split the lines
        var lines = data.split('\n');
        $.each(lines, function(lineNo, line) {
            var items = line.split(',');

            // header line containes categories
            if (lineNo == 0) {
                $.each(items, function(itemNo, item) {
                    if (itemNo > 0) options.xAxis.categories.push(item);
                });
            }

            // the rest of the lines contain data with their name in the first position
            else {
                var series = { 
                    data: []
                };
                $.each(items, function(itemNo, item) {
                    if (itemNo == 0) {
                        series.name = item;
                    } else {
                        series.data.push(parseFloat(item));
                    }
                });

                options.series.push(series);

            }

        });

您需要编写自己的解析器。下面是一个简单的示例,它是什么样子的:

var lines = data.split('\n');
$.each(lines, function (lineNo, line) {
    var items = line.split(',');
    if(lineNo !== 0) {
       var x = + new Date(items[1]+'/'+items[2]+'/'+items[0]+' '+items[4]),
           kwh = parseFloat(items[5]),
           savings = parseFloat(items[6]);
        if(!isNaN(kwh) && !isNaN(savings)){
            options.series[0].data.push([x,kwh]);
            options.series[1].data.push([x,savings])
        }
    }
}
和jsfiddle: