A basic Bar chart using CSV data (with column based data)

[No canvas support]

This basic example uses AJAX to request a CSV file as with basic-csv.html but unlike that example this CSV file holds each dataset as columns instead of rows. You can see the CSV file here.

Note: In October 2013 a new CSV reader was added to RGraph. It makes reading CSV files much easier. You can read about the new CSV reader here.

This goes in the documents header:
<script src="RGraph.common.core.js"></script>
<script src="RGraph.common.key.js"></script>
<script src="RGraph.line.js"></script>
Put this where you want the chart to show up:
<canvas id="cvs" width="600" height="250">
    [No canvas support]
</canvas>
This is the code that generates the chart:
<script>
    /**
    * This is the callback for the AJAX request
    */
    var callback = function ()
    {
        // Parse the AJAX result text
        var text   = this.responseText.split(/\r?\n/);
        var labels = ['Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'];
        var data   = [];
        var key    = text[0].split(/,/);
        
        for (var row=1; row<text.length; ++row) {

            var cells = text[row].split(/,/);

            for (var i=0; i<cells.length; ++i) {
                
                if (!data[i]) data[i] = [];
                
                // Add the value that hs been retrieved from the CSV file. Remember that because the CSV file is a
                // text file - it needs to be converted to a number first
                data[i].push(Number(cells[i]));
            }
        }


        var line = new RGraph.Line({
            id: 'cvs',
            data: data,
            options: {
                linewidth: 2,
                shadowColor: '#ccc',
                xaxisLabels: labels,
                hmargin: 5,
                yaxisScaleDecimals: 2,
                yaxisScaleUnitsPre: '',
                marginLeft: 45,
                key: key,
                keyPosition: 'margin'
            }
        }).draw();
    }


    /**
    * Make the AJAX call that fetches the CSV data
    */
    RGraph.AJAX('/sample2.csv', callback);
</script>