cdn_PaleyI {HadamardR} | R Documentation |
cdn_PaleyI Checks Hadamard Matrix can be constructed using Paley I method.
cdn_PaleyI(order)
order |
integer |
In Paley I method, if q=order-1 and q is prime number and q=3 (mod 4) then the function retuns 2 otherwise NULL.
2 or NULL
Paley, R.E.A.C. (1933). On Orthogonal matrices. J. Combin. Theory, A 57(1), 86-108.
PaleyI
for Paley I construction method.
cdn_PaleyI(8)
#2
cdn_PaleyI(16)
#NULL