ight[
.center[![Irony](slides_img/xgb-testAUC.png)]
]

### Open "06-xgboost.Rmd" to work through the xgboost examples. 

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# SuperLearner

The SuperLearner R package takes this idea of ensembling even further! Instead of ensembling only trees-based methods, we can simultaneously compare the cross-validated performance of multiple algorithms and/or a single algorithm with differently tuned hyperparameters. This is a generally advisable approach to machine learning instead of fitting single algorithms. 

L