What is the primary purpose of Principal Component Analysis (PCA)?
- To calculate the mean of data
- To classify data
- To reduce dimensionality of data
- To visualize data
The primary purpose of PCA is to reduce the dimensionality of data while maintaining as much information as possible. It transforms the data into a new, lower-dimensional set of variables that are uncorrelated and that explain the maximum possible amount of variance in the data.
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