Articles by Zachary Mayer

caretEnsemble Classification example

March 16, 2013 | Zachary Mayer

Here's a quick demo of how to fit a binary classification model with caretEnsemble. Please note that I haven't spent as much time debugging caretEnsemble for classification models, so there's probably more bugs than my last post. ...

[Read more...]

New package for ensembling R models

March 13, 2013 | Zachary Mayer

I've written a new R package called caretEnsemble for creating ensembles of caret models in R. It currently works well for regression models, and I've written some preliminary support for binary classification models. At th...

[Read more...]

Time series cross-validation 5

January 24, 2013 | Zachary Mayer

The caret package for R now supports time series cross-validation! (Look for version 5.15-052 in the news file). You can use the createTimeSlices function to do time-series cross-validation with a fixed window, as well as a growin...

[Read more...]

Error metrics for multi-class problems in R: beyond Accuracy and Kappa

July 6, 2012 | Zachary Mayer

The caret package for R provides a variety of error metrics for regression models and 2-class classification models, but only calculates Accuracy and Kappa for multi-class models. Therefore, I wrote the following function to allow caret:::train t... [Read more...]

R-bloggers

R news and tutorials contributed by hundreds of R bloggers

Articles by Zachary Mayer

caretEnsemble Classification example

New package for ensembling R models

Time series cross-validation 5

Error metrics for multi-class problems in R: beyond Accuracy and Kappa

Articles by Zachary Mayer

Never miss an update! Subscribe to R-bloggers to receive e-mails with the latest R posts. (You will not see this message again.)

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)