I am trying to classify three different bacteria phenotypes (A, B and C) and to evaluate the classification using a confusion matrix. I would please like to know how a confusion matrix works and how to interpret the matrix when classifying two phenotypes or interest and three phenotypes of interest.
I have attached my current confusion matrix. I would also like to know how to interpret it so I can improve my classification.
Lastly, I would like to know how using a classification report to evaluate cross-validation accuracy works. I have attached my graph and would like to understand how to read and interpret it.