Statistics: PCA Loading plot and Biplot support improved plot labeling

Version: 2018b

Type: Features

Category: Analysis

Subcategory: Statistics

Jira: ORG-12869

Principal Component Analysis: Loading plot and BiPlot use the latest design: plot label tab in Plot  details dialog, and update Axis Labels "Principal Component 1" to be "PC1", add the value of "Percentage of Variance" to the Units label