A few days ago, I released a new version of my R package, groupdata2, on CRAN. groupdata2 contains a set of functions for grouping data, such as creating balanced partitions and folds for cross-validation. Version 1.1.0 adds the balance() function for ... [Read more...]

After a fairly long life on GitHub, my R package, cvms, for cross-validating linear and logistic regression, is finally on CRAN! With a few additions in the past months, this is a good time to catch you all up on the included functionality. For example... [Read more...]

The cvms package is useful for cross-validating a list of linear and logistic regression model formulas in R. To speed up the process, I’ve added the option to cross-validate the models in parallel. In this post, I will walk you through a simple ... [Read more...]

I have spent the last couple of days adding functionality for performing repeated cross-validation to cvms and groupdata2. In this quick post I will show an example. In cross-validation, we split our training set into a number (often denoted “k”) of gr... [Read more...]