Question regarding columns of make_future_dataframe() #267
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@aiwalter The t value is computed and added to the data frame both during model fitting and prediction. The t value is basically a min-max normalized version of the ds column where the min is the start date of the data frame and the scale is the total number of days considered. This t value is used internally to model the trend. Once the model is fitted on the training data, we provide the support to make predictions using a completely new data frame. In that case, the model is fitted on a separate set of training data, but during prediction, the model will be fed with new testing data (with different dates) to predict its future. This is different from the original Prophet, where the predictions can be made only for the future of the training data. This is why we have given the support to provide new |
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How is the value
t
calculated when doingm.make_future_dataframe(df, periods=30)
? And what is it used for? Also why is it required to provide alsoy
? Infbprophet
, it is possible do to predictions only on theds
column, would be great of this would also be possible forneuralprophet
:)Thank you!
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