Question: Consider the training and test data posted on eLearning in the files 1-tranining-data.csv and 1-test-data.csv, respectively, for a classification problem with two classes. (a) Fit

Consider the training and test data posted on eLearning in the files 1-tranining-data.csv and 1-test-data.csv, respectively, for a classification problem with two classes.

(a) Fit KNN with K = 1, 6, . . . , 200.

(b) Plot training and test error rates against K. Explain what you observe. Is it consistent with what you expect from the class?

(d) Make a plot of the training data that also shows the decision boundary for the optimal K. Comment on what you observe.

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