Forecasting, Time Series Analysis, Fourier Transform, R, Ml So Good.
call")%>% mutate(diff = n-lag(n))%>% select(-n)%>% drop_na()%>% spec.pgram(., taper=0) Nothing striking. Remember that I said that the periodogram on the original scale is most important? Let me show you why by building the same periodogram and plotting it in various ways. raw.spec <-TC_df%>%