Specification of the lasso tuning parameter will be discussed and demonstrated via cross validation, which is another important modeling concept. This course covers more advanced content than other ...

We investigate the performance of empirical criteria for comparing and selecting quantitative models from among a candidate set. A simulation based on empirically observed parameter values is used to ...

We argue for the adoption of a predictive approach to model specification. Specifically, we derive the difference between means and the ratio of determinants of covariance matrices when a subset of ...