Compute the relative contributions of each of the base models in the ensemble model — compute_model_contributions.caret

The relative contributions are calculated using the caret::varImp function on the ensemble model. A scaling factor is applied to make the contributions sum to 100%.

Usage

# S3 method for class 'caret_stack'
compute_model_contributions(object, descending = TRUE, ...)

Arguments

object: A caret_stack object
descending: Whether to sort in descending order. If FALSE, the output is sorted in ascending order. Default is TRUE.
...: Not used. Included for S3 compatibility.

Value

A data.table

Examples

# Load pre-trained example caret_stack object
data(heart_failure_stack)

compute_model_contributions(heart_failure_stack)
#>       Model Relative Contribution
#>      <char>                 <num>
#> 1:   holter               44.1023
#> 2:     mrna               35.3940
#> 3: proteins               20.5037
#> 4:    cells                0.0000