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Prediction with alternate dataset
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- Posts: 1
- Joined: 08 Aug 2022, 17:36
Prediction with alternate dataset
Is it possible to use an estimated model object to predict for a new dataset (with the same schema)? In travel demand modeling we often will estimate a model using a survey dataset and then use the model to make predictions for a synthetic population. I don't see a way to specify a separate dataset in apollo_probabilities, and apollo_outOfSample seems to be only be used for cross-validation/train-test validation where a single dataset is split, not where there are separate datasets. Does Apollo have this functionality in another function I'm not aware of?
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- Site Admin
- Posts: 1050
- Joined: 24 Apr 2020, 16:29
Re: Prediction with alternate dataset
Hi
yes, this is straightforward.
Let's say that after model estimation, you want to use a new database called data_for_prediction.
you would then use these steps:
The important step is the replacement of database by a new one, and then the call to apollo_validateInputs()
Stephane
yes, this is straightforward.
Let's say that after model estimation, you want to use a new database called data_for_prediction.
you would then use these steps:
Code: Select all
database = data_for_prediction
apollo_inputs = apollo_validateInputs()
pred=apollo_prediction(model,apollo_probabilities,apollo_inputs)
Stephane