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fda (version 6.1.4)

zerobasis: Orthonormal Matrix with Columns Summing to Zero

Description

The matrix is k by k-1, columns are orthonormal and sum to zero. This matrix is used when quantities are unchanged to adding a constant, such as in multinomial data modelling.

Usage

zerobasis(k)

Value

A k by k-1 matrix with orthonormal columns that sum to zero.

Arguments

k

A positive integer greater than one.

Details

There are many ways of generating these matrix. This functions uses the discrete Fourier series less the constant vector.

See Also

smooth.surp, eval.surp