Description Usage Arguments Details Value See Also Examples
View source: R/cdn_goethals_T.R
Checks Hadamard Matrix can be constructed using available T-sequences.
1 |
order |
integer |
This function checks whether the Hadamard matrix of given order can be constructed using T sequences. If T sequences of length n,n,n,n are available, Hadamard matrix of order 4n can be constructed. Returns the value 13, if it is possible otherwise NULL is returned.
T-sequences are available for length of seq(1,73,2) and for 83, 101 and 107 in the internal table.
13 or NULL
had_goethals_T
for Goethals-Seidel construction method using T-sequences.
1 2 3 4 5 6 | cdn_goethals_T(28)
#T-seqeunce of length 7 exists.
#13
cdn_goethals_T(24)
#T-sequence of length 6 does not exist.
#NULL
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