Dear all,
I am applying a Fractional factorial analysis 2^(7-3), resolution IV, to an experimental work.
As I am not expert in such a kind of statistical approach, I would be grateful to you if you could help me with respect to the following issues:
1) the defining relations are:
I = ABCE = BCDF = ACDG.
Have I properly calculated the following aliases?
A=BCE=ABCDF=CDG=DEF=ABDEG=BFG=ACEFG
B=ACE=CDF=ABCDG=ABDEF=DEG=AFG=BCEFG
C=ACE=CDF=ABCDG=ABDEF=DEG=AFG=BCEFG
D=ABCED=BCF=ACG=AEF=BEG=ABDFG=CDEFG
E=ABC=BCDEF=ACDEG=ADF=BDG=ABEFG=CFG
F=ABCEF=BCDEF=ACDFG=ADE=BDEFG=ABG=CEG
G=ABCEG=BCDFG=ACD=ADEFG=BDE=ABFG=CEFG
AB= CE= ACDF= BCDG= BDEF= ADEG= FG= ABCEFG
BC= AE= DF= ABDG= ABCDEF= CDEG= ACFG= BEFG
AD= BCDE= ABCF= CG= EF= ABEG= BDFG= ACDEFG
AF= BCEF= ABCDF= CDFG= DEF= ABDEFG= BG= ACEG
AG= BCEG= ABCDFG= DEFG= ABDEF= BF= ACEF= CD
AC= BE= ABDF= DG= CDEF= ABCDEG= BCFG= AEFG
BD= ACDE= CF= ABCG= ABEF= EG= ADFG=BCDEFG
2) in principle, may I not consider the three-or-more factor interactions?
Thank you for the help you will give me.
Best regards
Please, reply to [log in to unmask]
Raffaella Pomi
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