starn5t3b {IsoCheck} | R Documentation |
A balanced 2-star of PG(4,2)
data(starn5t3b)
The star is formatted as a 3-dimensional array, where the [i,j,k]
-th element indicates whether or not the i
th basic factor is present in the j
th effect of the k
th flat of the star.
The star consists of five subspaces f_1, f_2, f_3, f_4, f_5
given by
f_1=(ABC,AC,CDE,B,BCDE,ABDE,ADE)
, f_2 = (AE,DE,AD,BCE,ABCDE,BCD,ABC)
, f_3 = (D,C,CD,ABCD,AB,ABD,ABC)
, f_4 = (E,ACDE,ACD,ABCE,BD,ABC,BDE)
and f_5=(CE,A,ACE,ABC,BC,BE,ABE)
.
In R, the data must be loaded using the data
function.
Neil Spencer, Pritam Ranjan, Franklin Mendivil
Spencer, N.A., Ranjan, P., and Mendivil, F., (2019), "Isomorphism Check for 2^n
Factorial Designs with Randomization Restrictions", Journal of Statistical Theory and Practice, 13(60),1-24 [https://doi.org/10.1007/s42519-019-0064-5]
checkSpreadIsomorphism
for checking the isomorphism of balanced spreads.
checkStarIsomorphism
for checking the isomorphism of balanced covering stars.