in
Checks if the coded values of the design point are in the defining relation specified by the factor numbers stored in the relation set. Suppose the designing relation is I = 124 = 135 = 2345 Then relation = setOf(setOf(1,2,4), setOf(1,3,5), setOf(2,3,4,5)).
The values in the words must be valid factor indices. That is If a design has 5 factors, then the indices must be in 1..5. With 1 referencing the first factor, 2 the 2nd, etc.
Parameters
relation
the set of words for the defining relation.
sign
the sign of the generator 1.0 = I, -1.0 = -I. The default is 1.0.