auto.arima function what is the auto.arima function of r what is aima function in r which statement determines the order of differencing what is the method of determining seasonal differencing what is arcama in r what is the auto.arima function what is arima how does r determine the order of differencing when estimating a regression with arima errors what method is used to calculate seasonal deviation when does the r function determine the order of differencing in a regression with arima errors? r how to determine seasonal differencing what does r find seasonal differencing how does r determine the order of diffencing what test is used to elicit seasonal variability? when in r how to obtain seasonal differencing how does r determine seasonal differencing r how does auto.arima function work r how does auto.arima determine the order of differencing in regression? how does r determine the order of differencing