The graph display offers a feature for calculating time series from formulas, e.g. from previously calculated regression formulas. You can work with these temporary time series "as usual"; however, you cannot save them in the database.

Features in This Dialog:

Enter formula

▪In the context menu of the graph, select the Formula function.

▪Define the desired formula in the Calculate time series dialog.

▪To do so, apply the desired selections from the source time series, operators and functions lists to the Formula box using the arrow buttons.

▪In the Axis box you specify which value axis is used to represent the calculated time series.

▪This is especially important when representing several time series with different parameters.

▪With the Paste function of the context menu you can insert formulae copied before.

▪Click [OK].

▪The temporary time series is displayed in the graph and can be edited like a normal time series and be used for example for insertion /fitting.