AI engineering glossary · Time series recsys
What is exogenous variable?
Exogenous variable (also called External regressor): A variable that comes from outside the series being modelled and may help explain it, such as weather, price or a holiday flag. For forecasting, its future values must be known or predicted too.
Exogenous variable: an example
Public holiday indicators for the next 30 days are known in advance and can be used for retail footfall.
Related terms
More Time series recsys terms
- Exponential smoothing
- Factorisation machine
- Forecast horizon
- Forecast reconciliation
- Forecasting
- Fourier terms
- Funk SVD
- GARCH model
Where you learn it
Exogenous variable is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.