Linear discriminant analysis (LDA) - how to use it as a classifier

See all my videos at https://www.tilestats.com/ In this second video about LDA we will see how LDA can be used as a machine learning technique. We will first discuss the basics of LDA, then (6:09), we will see how we can find a good cutoff value for classification, how to calculate the sensitivity and specificity (08:00), ROC curve (11:56), probabilities (13:50) and how we can make predictions based on more than two groups (18:56) by using the Iris data set. Note that I incorrectly say 30.5 at (18:17 and 18:38). I should have said, according to the text, 31.5.