Calculates the process values in a spectral GP object based on the current coefficient values. The process values are calculated by multiplying the coefficient values by the basis matrix, which is done by the inverse FFT.
A GP object, created by
process values of the object.
The function modifies the GP object, which is essentially a pointer (an R environment in this case), so NULL is returned.
Christopher Paciorek email@example.com
Type 'citation("spectralGP")' for references.
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