i tried using ARIMA but cannot due to small dataset. anybody know other time series forecasting for small dataset of 20 sample? urgent need help

  • $\begingroup$ Predict the average value every time? With so few data, it will be challenging to develop a reliable model of much more complexity than that. $\endgroup$
    – Dave
    Jun 8, 2023 at 21:33
  • $\begingroup$ Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. $\endgroup$
    – Community Bot
    Jun 20, 2023 at 9:06

1 Answer 1


When it comes to such small dataset:

  1. a good understanding of the underlying processes that generate the data is crucial.
  2. Then you need to find a suitable model with very few parameters that you can estimate from the data.
  3. The model can be used for extrapolation and forecasting.

Note: The quality of the forecast would then strongly depend on the choice of model and how well it fits to the underlying use case.

  • $\begingroup$ do you know any good model? $\endgroup$ Jun 12, 2023 at 14:22
  • $\begingroup$ I am lacking point 1 in my above list. Without that, I can not give a good recommendation. $\endgroup$
    – Broele
    Jun 13, 2023 at 7:15

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