• • • • 5.3
It’s easy to compare directly two or more variables in one table or graph.
- Select the variables together in the diagram, using Shift+click to add each to the selection, or dragging a selection rectangle around them.
- Click in the toolbar or from the hover icons, or press Control+r.
- Click OK in the confirmation dialog.
This creates a new variable with a default identifier,
Compare1, with a list of the selected variables.
The result of
Compare1 is a graph containing an index containing the titles of the variables being compared. This is the Self index of the
Compare1. It also includes all the indexes of the array variables being compared — in this case, Time and
This helps clarify how the interest payments reduce (become less negative) as the principal payments on the mortgage increase (become more negative).