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. Author manuscript; available in PMC: 2016 Jan 1.
Published in final edited form as: Lancet Respir Med. 2014 Nov 24;3(1):42–52. doi: 10.1016/S2213-2600(14)70239-5

Figure 3. Cross-validated mean-squared error for the Super Learner and the 12 candidate algorithms included in the library.

Figure 3

Upper panel concerns the Super Learner with categorized variables (Super Learner 1): Mean Squared Error (MSE) associated with each candidate algorithm (top figure) – Receiver Operating Curves (ROC) for each candidate algorithm (bottom figure); Lower panel concerns the Super Learner with non-transformed variables (Super Learner 2): Mean Squared Error (MSE) associated with each candidate algorithm (top figure) – Receiver Operating Curves (ROC) for each candidate algorithm (bottom figure).