Add/Remove curves

This dialog is activated by selecting the command Add/Remove Curves... from the Graph Menu.

The left window shows the columns which are available for plotting in the different tables of the project. If the Show current folder only option is checked, only the tables in the active folder of the project will be listed in this window. The right window gives the list of the curves already plotted. In the case presented below, there are two tables from which the Add/Remove Curves... dialog box allows to select columns. If you use this dialog box to add a column, the X column will be the one defined as X in the corresponding table.

Figure 5-8. The Add/Remove Curves... dialog box.

In this dialog box, if you select one curve of the plot in the right window, you can change the columns used for X and Y with the Plot Association button. In any case, you can't mix the X values of one table with the Y values of another one. If you want to do this, you have to copy the columns in the same table.

If the curve selected is a function, you can modify it by pressing the Edit Function... button. Refer to the Add Function... dialog box for more details on functions editing.

If the Show Range option is checked, the plot range of all the curves not defined as analytical functions will be also displayed in the right window of the dialog. The plot range is the interval of points which are visible in a curve. You can show/hide data points from a selected curve, without having to delete them, by pressing the Edit Range... button, which opens a dialog allowing to edit the plot range.