What is the Kappa statistic in the context of caret's machine learning models?
A) Kappa represents is the percent by which the researcher's model is better than random.
B) Kappa is one type of kernel for caret models.
C) Kappa is a visualization (plotting) parameter under caret.
D) Kappa is a tuning parameter under caret.

Question

Quizplus · Accepted Answer

The Kappa statistic in caret's machine learning models is a measure of inter-rater agreement between the predicted and actual classes. It represents the percentage by which the researcher's model is better than random, and is often used to evaluate the performance of classification models.

What Is the Kappa Statistic in the Context of Caret's