The blue bar along the bottom of the chart has a number of options which allow you to show information about selected operators. The option bar can be hidden when necessary.

Click on an option on the option bar to see how it works. One of the options on the option bar is “help” – Clicking on this will give more detailed information about the options.

Points on the chart can be highlighted in colour either by clicking on the point or by selecting an operator in the operator list (on the option bar). A legend shows which colour is used for which operator.

The plotted points are interactive. This means you can use your mouse to hover over the points to see information about the data. (eg maximum and minimum values etc)