designMatrix | 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

`combinations`

, `subsetMatrix`

.

designMatrix(3)

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