As I have some NA's in my data, and FactoMineR handles those exeptionally well, and I have arranged myself with FactoMineR quite well which is why I want to use the results of FactoMineR.
But it occured to me that there is no "official" way to do a biplot with the results of FactoMineR.
I have homework problem on page 378 about breast cancer the question asks
Suppose the a cancer is classified as benign if p 0.5 and malignant if p < 0.5. Compute the number of
errors of both types that will be made if this method is applied to the current data with the reduced