i am getting the following error when trying to use forecast to get an ARIMA prediction for future values (for validation against validation set))
fit <- Arima(data.msts, c(0,0,1), seasonal = list(order = c(0,1,1), period=7), include.drift = TRUE)
forecast(fit, h= 5)
Error in .forecast.transform(x, M, a, h, 1) :
argument "M" is missing, with no default
Any help appreciated