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help for fourier
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Fourier series creation

fourier degvar [if exp] [in range] [, cstub(str) sstub(str) npairs(#) ]

Description

fourier creates new variables which are

cos(i * degvar * pi / 180)

and

sin (i * degvar * pi / 180)

for degvar (measured in degrees) and i = 1, ..., npairs.

Options

cstub(str) specifies the stub for the names of the new cosine variables. This defaults to cos_, meaning that the cosines would be called cos_1, cos_2, cos_3 and so forth.

sstub(str) specifies the stub for the names of the new sine variables. This defaults to sin_, meaning that the sines would be called sin_1, sin_2, sin_3 and so forth.

npairs(#) specifies the number of pairs of variables. This defaults to 1.

Example

. fourier deg, np(3)

Author

Nicholas J. Cox, University of Durham, U.K. n.j.cox@durham.ac.uk