What does the "mtry" option do in random forests?
A) Specifies the number of iterations in the solution
B) Specifies the number of trees to use in the forest
C) Specifies the number of predictors to consider at each split in a tree
D) There is no such option

Question

Quizplus · Accepted Answer

"mtry" option in random forests specifies the number of predictors to consider at each split in a tree. It controls the randomness of the feature selection during the tree construction. Choosing too low or too high value for "mtry" can lead to overfitting or underfitting, respectively. Generally, a value of "sqrt(p)" or "log2(p)" is used, where "p" is the number of predictors.

What Does the "Mtry" Option Do in Random Forests