Forecasting: principles and practice, 3rd edition-（13.4Prediction combination- Warning message ）

[liuhong]

I receive a warning message while running the following code in 13.4Prediction combination, how can I solve it？Thanks very munch

cafe_futures <- cafe_models |>

• Generate 1000 future sample paths

• generate(h = "5 years", times = 1000) |>

• Compute forecast distributions from future sample paths

• as_tibble() |>
• group_by(Month, .model) |>
• summarise(

• dist = distributional::dist_sample(list(.sim))
  

• ) |>
• ungroup() |>

• Create fable object

• as_fable(index = Month, key = .model,

•        distribution = dist, response = "Turnover")
  

summarise() has grouped output by 'Month'. You can override using the .groups argument.
Warning message :
The dimnames of the fable's distribution are missing and have been set to match the response variables.

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^{Referred here by Forecasting: Principles and Practice, by Rob J Hyndman and George Athanasopoulos}

[robjhyndman]

It's just a warning, not an error. The distribution object does not have any dimnames attribute, and fable is just warning you that it has added them. Nothing to worry about.

[liuhong]

Thanks very much,I feel relieved when I receive your answer！