I am trying to use auto.arima to fit a univariate time series and do forecast. This is an imaginary data on monthly outcomes of 2 years and I want to forecast the outcome for next 12 months of next year. data Data1; input RR; datalines; 12 14 17 15 13 15 15 14 15 14 16 15 15 18 16 16 15 14 15 16 16 14 13 12 ; run; I successfully took this data into R and used the auto.arima codes but am getting the following error: fit <- auto.arima(Data1) ------------------------------------------------------------------------------------------------------------ Error in model.frame.default(formula = x ~ 1, drop.unused.levels = TRUE) : invalid type (list) for variable 'x' ------------------------------------------------------------------------------------------------------------ Please help. Thanks, Ruchi The information contained in this communication is highl...{{dropped:18}}