Fourier Analysis Help
Have you done any homework. help.search() or ... spectrum will produce a spectrum and fft is the underlying function. On Fri, Mar 13, 2009 at 2:46 PM, Vittorio Colagrande
<colavittorio at virgilio.it> wrote:
Dear R-help members, To whom it may concern, our research group is conducting a study to evaluate the predictive value of 24 hour blood pressure variability. We are looking for an R routine that performs a fast Fourier transform spectral analysis (with an output of the approximation function of the Fourier and estimates the validity of the model for the various harmonics). Thanks Vittorio Colagrande ? ? ? ?[[alternative HTML version deleted]]
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