Regression diagnostics | Regression variable selection
In statistics, Mallows's Cp, named for Colin Lingwood Mallows, is used to assess the fit of a regression model that has been estimated using ordinary least squares. It is applied in the context of model selection, where a number of predictor variables are available for predicting some outcome, and the goal is to find the best model involving a subset of these predictors. A small value of Cp means that the model is relatively precise. Mallows's Cp has been shown to be equivalent to Akaike information criterion in the special case of Gaussian linear regression. (Wikipedia).
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