I'm struggling to create a rather elaborate fractional factorial design using R.

(see http://en.wikipedia.org/wiki/Fractional_factorial_design)

I've searched the Google and the R-lists and have checked out several promising packages (AlgDesign, DoE.base, acepack)

But I have not found anything thing that can handle a fractional design (only interested in main effects) with 8 factors that have either 3, 4, 6, or 11 levels each!

Can anyone point me in the right direction?

Thanks!

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