TrainingAlgorithm.cs

// Set the training algorithm 
var trainer = mlContext.Regression.Trainers.FastTree(
                              new FastTreeRegressionTrainer.Options() { 
                                            NumberOfLeaves = 98, 
                                            MinimumExampleCountPerLeaf = 10, 
                                            NumberOfTrees = 500, 
                                            LearningRate = 0.07655732f, 
                                            Shrinkage = 0.2687001f, 
                                            LabelColumnName = "season", 
                                            FeatureColumnName = "Features" 
                                            });