What is PCA used for?

Related questions

1. What is PCA loading?
2. Why PCA is used in machine learning?
3. Is PCA supervised or unsupervised?
4. Do I need to normalize data before PCA?
5. Is PCA feature extraction?
6. What is a Biplot in PCA?
7. What is the purpose of normalizing data?
8. What is meant by the process of statistics?
9. Does SVM need normalization?
10. What is PCA in data mining?

Tags

1. #variables
2. #linear
3. #covariance
4. #dimensionality
5. #reduction
6. #structure
7. #component
8. #principal
9. #explain
10. #through
11. #combinations
12. #often
13. #technique
14. #analysis
15. #variance