Forecasting, Time Series Analysis, Fourier Transform, R, Ml So Good.
lets you build a periodogram using fast Fourier transforms. The periodogram is an estimator of the spectral density of a signal. As with many things in the world, it is best if I show instead of type. raw.spec <-TC_df%>% filter(RecordType=="VOIP call")%>% spec.pgram(., taper=0) > summary(raw.spec)