Question: 4.3. Implement print, summary and plot method functions for the class Ida of Chapter 12. (Perhaps the plot method should give a barchart of the

4.3. Implement print, summary and plot method functions for the class

"Ida" of Chapter 12. (Perhaps the plot method should give a barchart of the singular values or plot the data on the first few linear discriminants, identifying the groups and marking their means.)

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