How many components does it take to reach 90% of the variance
Machine Learning · from Dimensionality reduction
PCAexplained_variance_ratio_components_scalingwhen not to use itPutting the kettle on…
Starting up…
Exercise 2
How many components does it take to reach 90% of the variance? Return the count as an int.
your answer
stuck? the lesson behind it
Dimensionality reduction
PCA costs us 0.07 AUC — because it has never seen the target