Question: Use resampling to validate the Somers Dxy rank correlation between predicted logit and the ordinal outcome. Also validate the generalized R2, and slope shrinkage coefficient,

Use resampling to validate the Somers’ Dxy rank correlation between predicted logit and the ordinal outcome. Also validate the generalized R2, and slope shrinkage coefficient, all using a single R command. Comment on the quality (potential “export-ability”) of the model.

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