We will be working with the Penguin dataset again as we did for Homework #1. Please use “Species” as your target variable. For this assignment, you may want to drop/ignore the variable “year”.
Using the target variable, Species, please conduct:
a. Linear Discriminant Analysis
a. You want to evaluate all the ‘features’ or dependent variables and see what should be in your model. Please comment on your choices.
b. Just a suggestion: You might want to consider exploring featurePlot on the caret package. Basically, you look at each of the features/dependent variables and see how they are different based on species. Simply eye-balling this might give you an idea about which would be strong ‘classifiers’ (aka predictors).
c. Fit your LDA model using whatever predictor variables you deem appropriate. Feel free to split the data into training and test sets before fitting the model.
d. Look at the fit statistics/ accuracy rates.
b. Quadratic Discriminant Analysis
a. Same steps as above to consider
c. Naïve Bayes
a. Same steps as above to consider
d. Comment on the models fits/strength/weakness/accuracy for all these three models that you worked with.
