# Factor Models Examples about [`CharacteristicsFactorModel`](https://skfolio.org/generated/skfolio.prior.CharacteristicsFactorModel.html.md#skfolio.prior.CharacteristicsFactorModel): building a characteristics factor model from an [`AssetPanel`](https://skfolio.org/generated/skfolio.containers.AssetPanel.html.md#skfolio.containers.AssetPanel), diagnosing it, and using it for portfolio construction, attribution and alpha integration.
![](auto_examples/factor_models/images/thumb/sphx_glr_plot_characteristics_factor_model_thumb.png) [Characteristics Factor Model](https://skfolio.org/auto_examples/factor_models/plot_characteristics_factor_model.html.md)
Characteristics Factor Model
![](auto_examples/factor_models/images/thumb/sphx_glr_plot_factor_constrained_portfolio_thumb.png) [Factor-Constrained Portfolio and Attribution](https://skfolio.org/auto_examples/factor_models/plot_factor_constrained_portfolio.html.md)
Factor-Constrained Portfolio and Attribution
![](auto_examples/factor_models/images/thumb/sphx_glr_plot_alpha_factor_neutral_portfolio_thumb.png) [Alpha Research and Factor-Neutral Portfolio](https://skfolio.org/auto_examples/factor_models/plot_alpha_factor_neutral_portfolio.html.md)
Alpha Research and Factor-Neutral Portfolio