Compare the number of candidate and frequent itemsets generated in parts (c) and (d).

When using the automatic counter loop:

a. The ending value is optional if you have another way to exit the loop. b. The step value is optional. c. The starting value is optional. d. None of the above. e. All of the above.

Repeat part (a) using X as the first splitting attribute and then choose the best remaining attribute for splitting at each of the two successor nodes. What is the error rate of the induced tree?

Consider the following set of training examples.