Forecasting, Time Series Analysis, Fourier Transform, R, Ml So Good.
call")%>% timetk::summarise_by_time( .date_var = newdate, .by = "day", value = sum(n))%>% mutate(day = as.numeric(yday(newdate)))%>% ungroup() fit <- lm(value~day + sin(2*pi*day/7)+cos(2*pi*day/7)+ sin(2*pi*day/3)+cos(2*pi*day/3)+ sin(2*pi*day/6)+cos(2*pi*day/6)+ sin(2*pi*day/8)+cos(2*pi*day/8)+