Just FYI, FisherIris dataset is in example data and is used in many places in docs.
ExampleData["MachineLearning"] // Grid
{
{"MachineLearning", "BostonHomes"},
{"MachineLearning", "FisherIris"},
{"MachineLearning", "MNIST"},
{"MachineLearning", "MovieReview"},
{"MachineLearning", "Mushroom"},
{"MachineLearning", "Satellite"},
{"MachineLearning", "Titanic"},
{"MachineLearning", "UCILetter"},
{"MachineLearning", "WineQuality"}
}