Plotting options in panel above the graph
The Threshold parameter on the left top of the panel defines a line on the graph.
Depending on the variable, values below that value will appear in one color (blue or red) on the graph,
values above the threshold will show in the other.
The threshold value defaults to the average of the data plotted.
Add a running mean by checking the checkbox in the top middle of the panel
and choose the appropriate number of years for your running mean.
The top middle of the panel also contains a checkbox to show the average of the data that is plotted.
The right side of the panel has options to show or hide the legend and to change the chart type.
On the Graph
Hover your mouse over a point on the graph to see the date and data value at that point
Click and drag on the graph to zoom in on a particular area.
A "Reset Zoom" button will pop up on the top righ hand side of the graph. This will allow you to reset the zoom to it's default value.
The legend is movable. Just hover your mouse over the double dots, click and move the legend to the desired position.
In the top right corner of the graph you can find print and serevral download options (PNG, JPEG, PDF, SVG).