[R] about fact.design

[angel hellraiser]

Hi R-users:

Can I get the S-function fact.desig for experimentl design for like S-PLUS
In general , Is there software for R in windows about experimental design , 
say,
experimental design , ssType3 , combinatory, orthogonal design.......and for 
sampling in finite population, Horwitz-Thompson sampling pps.
Thanks in advance.

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