plotImp function

Create a barplot of relative variable importance scores.

Given a named vector of variable importance measures, this function makes a barplot of the relative importances. The importances are scaled to sum to 1. An appropriate input is one column of the output from varImpY() or varImpCoeff().

plotImp(importance_vector, ...)

Arguments

• importance_vector: a named vector where the names are the variables and the vector stores the importances.
• ...: additional arguments to plot, such as "main", "cex", etc.

Examples

imp <- varImpCoeff(forest)[,3]
plotImp(imp, main="Standardized Variable Importance")