Question
and excluded in the best model. For each method/model you fit, report the three most important predictive variables (they may not be the same across
and excluded in the "best" model. For each method/model you
fit, report the three most important predictive variables (they may not
be the same across methods).
Note: If you use neural networks with the nnet package, the olden function
from the "NeuralNetTools" packages can be used to assess relative importance
of the variables in the model. You can get variable importance from a decision
tree with mod$variable.importance for the decision tree or from the summary
function.
For the each method/model fit, report the training data area under the
curve (AUC) and the test data AUC.
Answer the following questions
For each method/model fit, is the training AUC better or worse than the
test AUC?
In comparing the predictive ability of the two models with each other, is
better to compare the AUC from the training data or from the test data?
Why?
In general, is the test AUC expected to be larger or smaller than the test
AUC? Why? Is this always the case?
Which of the two methods/models fits/performs better?
1
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