Figure 2

3D scatter plot of the principal components of the training and test sets. (A) 3D scatter plot of the principal components of the training set. (B) 3D scatter plot of the principal components of the test set.

3D scatter plot of the principal components of the training and test sets. (A) 3D scatter plot of the principal components of the training set. (B) 3D scatter plot of the principal components of the test set.