Statistical functions

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<statisticalFunction function="differences"/>

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If you configure Differences statistical function, there will be the following options available in plot:

• Reference level.
  This option is always available. It compares the values of the TimeSeriesSet to a value you can specify by typing intot the box marked <enter value>
• Compare runs
  This option is only available if you have selected at leaset 2 different runs for each timeSeriesSet in the display. The number can be greater than 2, and does not need to be the same number for all timeSeries. (For example 2 different runs for parameter A, and 3 for B). As reference level, the oldest of this runs is selected, and the difference compared to this run is displayed.
• Select timeSeries as reference level
  This option is available if you have at least two different time series open in the plot. They can be different runs, but they do not need to be.

If the checkbox "Relative difference(%)" is checked, the relative difference will be displayed (in %). This is available for all three options.

Display lows below value & Display peaks above value

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<statisticalFunction function="doubleMassCurve">
	<dateFormat>yyyy-MM-dd hh:mm</dateFormat>
</statisticalFunction>

Duration curve

A convenient way to show the variation of hydrological quantities through time may be done by means of duration curves. For the selected time period the values of the selected quantity are sorted descending (durationExceedence) or ascending (durationNonExceedence). When the duration curve is plotted in the timeseries display, the x-axis will show the entire length in time of the selected view period. Percentages are shown as duration with respect to the entire chosen view period.

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<statisticalFunction function="elevation"/>

Ensemble Percentile Exceedence

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