Description Usage Arguments Details Value References Examples
This function provides the Williamson Matrix order and T-Sequence length required to construct Hadamard matrix.
1 | get_cooper(x)
|
x |
integer Hadamard Matrix Order to Check |
If m is the order of T-Sequence and n is the order of Williamson sequence and both exists. Cooper and Wallis (1972) showed a construction method for Hadamard matrix of order 4mn exists. This function returns m and n if they exists otherwise NULL value is returned.
m Tsequence order
n Williamson order
Cooper, J., and Wallis, J. 1972. A construction for Hadamard arrays. Bull. Austral. Math. Soc., 07: 269-277.
1 2 3 4 5 6 7 | get_cooper(340)
#$m
#[1] 5
#$n
#[1] 17
get_cooper(256)
#NULL
|
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