score:0

The only way to show extra data in the Tooltip is to use the pointFormatter:function(){} in the tooltip section of the configuration. You can pick the extra data you need from a set of data provided by the server that supplies data, but which you do not output as a series in the chart. You need to pick the value for the current date based on the current point in the graph and append it to the result of the tooltip formatter function.

This way, however, the extra data you want to show in the tooltip cannot appear as a line in the chart, as you aren't creating a series for it.

score:45

You can use the visible option of the serie definition.

visible: Boolean Set the initial visibility of the series. Defaults to true.

Code:

series: [{
    data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4],
    visible: false
}, {
    data: [129.9, 271.5, 306.4, 29.2, 544.0, 376.0, 435.6, 348.5, 216.4, 294.1, 35.6, 354.4],
    yAxis: 1,
    visible: false
}]

Here a working fiddle: http://jsfiddle.net/IrvinDominin/CkLLt/1/


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