Full or fractional factorial design matrix generation
The function generates the design matrix provided the number of 2-levels design factors and defining relations.
numeric. The number of 2-levels design factors in the designs.
A defining relation is declared by a vector where the first entry
corresponds to the left hand side (LHS) of the defining
equation. For example, if
then the defining equation is -5=1*2*3*4. A full 2-levels (-1,1)
factorial design is generated. For each defining relation the LHS column
is replaced by the corresponding columns product. At the end repeated
runs are removed from the matrix.
The function returns a 2-levels design matrix with
conf.design of the
FrF2 from the FrF2 package.
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