1. Model Performance Evaluation# Model Performance Evaluation 1.1. Estimators 1.1.1. plot feature importances 1.1.2. plot_learning_curve 1.2. Metrics 1.2.1. plot precision recall 1.2.2. plot roc 1.2.3. plot calibration curve 1.3. Decomposition 1.3.1. plot pca component variance 1.3.2. plot pca 2d projection 1.4. Clustering 1.4.1. plot elbow