[R] DOE support in R and fac.design
nirmalg at psu.edu
Sun Nov 16 23:17:29 CET 2003
I've searched through the contributed packages and found conf.design
which supports factorial design generation - is there any way to specify
the values of the levels in the functions in this library? Currently the
default for 2 level designs are the levels 0 and 1. Reason I ask is I'd
like to create a Central Composite design and to do this by appending to
a factorial design, it would be easiest if the levels of the factorial
were at -1 and 1... (so I can add levels such as 0, -2 and 2)
This brings me to my second question - is there any support for design
creation of some of the common designs like the CCD?
And finally - in the help for conf.design, in the "See Also" section,
there's a fac.design mentioned but I can't seem to find it anywhere.. is
this function available and what does it do?
I would appreciate it if you could please cc me on the reply.
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