varImp.caretEnsemble: Calculate the variable importance of variables in a caretEnsemble.
Description
This function wraps the varImp function in the
caret package to provide a weighted estimate of the importance of
variables in the ensembled models in a caretEnsemble object. Variable
importance for each model is calculated and then averaged by the weight of the overall model
in the ensembled object.Usage
## S3 method for class 'caretEnsemble':
varImp(object, scale = TRUE, weight = TRUE, ...)
Arguments
object
a caretEnsemble to make predictions from.
scale
should importance values be scaled 0 to 100?
weight
should a model weighted importance be returned?
...
other arguments to be passed to varImp
Value
- A
data.frame with one row per variable and one column
per model in object