In general a user wants to draw a serie of graph and will enjoy to have a menu always visible to access quickly to functions. This is why all functions and parameters menus of the main window are 'Tear-off' menus. For each analysis, specific question are asked. All questions admit a default answer indicated in the text fields. Changing the parameters The calcul functions need some parameters to design the drawings.
Some parameters are in common or generally used.
Those parameters have been implemented in the 'Parameters' window . This window is used to select and display the data to study and its caracteristics. The axis lenght is accessible in the 'Axis options' window. The next part of the interface is functions oriented is not the same in xtms and xcaa. For each functions the parameters that are not used are greyed and insensitive in the next windows .