designMatrix {rje} | R Documentation |
Produces a matrix whose rows correspond to an orthogonal binary design matrix.
designMatrix(n)
n |
integer containing the number of elements in the set. |
An integer matrix of dimension 2^n by 2^n containing 1 and -1.
The output matrix has orthogonal columns and is symmetric, so (up to a constant) is its own inverse. Operations with this matrix can be performed more efficiently using the fast Hadamard transform.
Robin Evans
designMatrix(3)