protect(): protection stack overflow in Ranger
https://github.com/imbs-hl/ranger/issues/103
due to the formula interface
rfModel <- ranger(Species~. , data = iris, mtry = 2, num.trees = 1000, importance = “impurity”, probability = T)
rfModel <- ranger(dependent.variable.name = “Species”, data = iris, mtry = 2, num.trees = 1000, importance = “impurity”, probability = T)