This help file describes the menu for inspecting the active design
Ulrike Groemping
This menu offers possibilities for inspecting a designs properties. It is not meant to analyse data but to look at the structure of a design.
The menu item Display active design prints the current design.
The menu item Summarize active design prints a summary of the current design,
based on the summary method for
class design.
The menu item Plot active design ... plots selected experimental factors of the current design,
based on the plot method for
class design, applied to the design stripped
of any responses.
The menu item Tabulate active design ... tabulates selected experimental factors
of the current design.
The menu item Experts: display design.info for active design displays the
design.info attribute of the current design (cf. design
for a general description of class design and its attributes).
Plotting and tabulating are particularly interesting for designs with qualitative factors,
and when looking at three or four
factors at a time, because this highlights factor combinations that do not occur
or do not occur equally often.
Ideally (generalized resolution IV), each projection onto three factors is a full factorial,
which is equivalent to zero words of generalized length 3 (the analogous request
for projections onto four factors corresponds to generalized resolution V).
Note that the menu items are available only, if the active data frame is a class
design object.