※ 引述《rafan (@_@"""")》之铭言：
: ※ 引述《wazowski (ludan)》之铭言：
: : By the way,
: : is anybody running into the same problem that
: : construction of decision tree with the 40-value attribute takes an
: : incredibly large amount of CPU time? (I'm using rpart)
: : It's been several hours and my machine is still desperately
: : building the tree :(
: Did you use a small subset or the whole covtype set?
As indicated in the homework description, a 3000-instance subset
for training.
(My machine has not finished rpart()...)