Return to the following data sets and view each as a standalone set of training data. Construct a classification tree from the associated collection of input variables. Operate with the Gini impurity measure. Start with a full tree and use L-fold cross-validation to help to identify a complexity parameter for pruning the tree. To select the complexity parameter 𝛼, appeal to a plot of the cross-validation error versus 𝛼 (available, e.g., via the plotcp() function in the external rpart package). Employ the one-standard error rule: select the largest 𝛼 whose cross-validation error does not exceed the minimum error plus its standard deviation. Plot the pruned tree. Also find the confusion matrix for these training data, and calculate the consequent accuracy and misclassification rates.
Construct a classification tree from the training data, as per the methods in Section 9.4. Operate with the Gini impurity measure. Start with a full tree and use 10-fold cross-validation to help to identify a complexity parameter for pruning the tree. Plot the resulting tree. Also find the confusion matrix for both the training data and the test data, and calculate the consequent accuracy and misclassification rates
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.Read more
Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.Read more
Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.Read more
Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.Read more
By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.Read more