Interpreting Confusion Matrix


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.




There’s information for both of these in our manual; if you have follow up questions or if anything else is unclear, please don’t hesitate to follow up!