Nested versus non-nested cross-validation

Note Go to the end to download the full example code. or to run this example in your browser via JupyterLite or Binder Nested versus non-nested cross-validation# This example compares non-nested and nested cross-validation strategies on a classifier of the iris data set. Nested cross-validation (CV) is often used to train a model in which hyperparameters also need to be optimized. Nested CV estima