8000 fixed aic computation by SwytDrymz · Pull Request #9504 · statsmodels/statsmodels · GitHub
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fixed aic computation #9504

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SwytDrymz
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Removed +1 in aic computation as intercept is already included in .df_model as described in #9500

@bashtage
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bashtage commented Feb 8, 2025

Looks good. Need to see if any tests rely on this.

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bashtage commented Feb 8, 2025

One second thought, it is possible the +1 is for the estimated variance, so perhaps this isn't that strange. Ultimately as a ranking criteria it makes no difference to +1 or not.

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