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$\begingroup$I'm mot saying this is the best way, but how about reversing the order of the time series and forecasting into the future of the reversed time series?$\endgroup$
$\begingroup$There might be some logical cut-off point for the past. Like the AirPassengers dataset in R, it would be meaningless to predict before 1903. I say this because it seems like you data set is close to 0 around the beginning. Is there a true 0 point for your variable?$\endgroup$
AirPassengers
dataset in R, it would be meaningless to predict before 1903. I say this because it seems like you data set is close to 0 around the beginning. Is there a true 0 point for your variable? $\endgroup$