Prior Remark for Windows users
The R GUI should be installed with the Single Document Interface (SDI) mode
instead of the default MDI mode. John Fox, the author of R-Commander, has described
how to change MDI to SDI, if R has been installed in the wrong mode.
It is strongly discouraged to run the R-Commander under the MDI mode,
as it happens very frequently that windows suddenly disappear. They usually
have iconized only and can be retrieved from the taskbar; nevertheless, this behavior
can be very annoying and can be avoided by using R in SDI mode.Beta Version!
RcmdrPlugin.DoE is currently in beta shape. The calculation functions have
been reasonably tested within the underlying calculation packages. Usage of the menus
has of course also been tested, but there are very likely untested scenarios where
something does not work properly. Bug reports are therefore invited!
The logged commands are currently aiming to be correct but not to be didactic,
since they have been generated with the purpose to obtain a valid result from the inputs with as
little programming effort as possible. They often contain many superfluous inputs,
since default inputs could also be omitted. For example, while FrF2(8,4) would
produce a regular fractional factorial design with 8 runs, 4 factors and default factor names and levels,
the respective logged command is three rows long.
The help files will have to be improved upon. Suggestions are welcome (where did you get stuck?).
Current users of this package have to accept acting as beta testers.
It is particularly important to never work with the one and only data original, but have
the valuable experimental data themselves stored in a safe place.Covered methodology and planned extensions
Full factorial designs, orthogonal main effects designs (limited catalogue, extension planned),
regular and non-regular 2-level fractional factorial designs, central composite and Box-Behnken
designs, and latin hypercube samples can currently be generated from the GUI.
RcmdrPlugin.DoE implements much of the functionality in packages DoE.base
and FrF2 - especially the implementation of function FrF2
is not always as flexible as the command line approach. Some extensions are intended,
but there will always be a difference.
Furthermore, the functionality of package DoE.wrapper is made available. Here,
DoE.wrapper itself is going to be extended at least to cover also D-optimal designs.
Furthermore, analysis facilities from package rsm are to be implemented into
RcmdrPlugin.DoE.