wine: 178 rows, 13 features
PC1  36.2% (cum.  36.2%)  flavanoids -0.42, total_phenols -0.39, od280/od315_of_diluted_wines -0.38
PC2  19.2% (cum.  55.4%)  color_intensity -0.53, alcohol -0.48, proline -0.36
PC3  11.1% (cum.  66.5%)  ash +0.63, alcalinity_of_ash +0.61, alcohol -0.21
components for 80% of the variance: 5
components for 90% of the variance: 8
components for 95% of the variance: 10
