Exercise3

Workflow: Chapter 4/Exercise 3

This workflow is another exerciser for classification training a Naive Bayes Learner model using data of the website1.txt file.

First, it's calculating basic stats of the number of visitors ("no visitors"). Then, after some preprocessing, it's training a Naive Bayes model (Naive Bayer Learner node) to classify "weekend" vs. "no weekend" according to the number of visitors of a website. Lastly, it's evaluating the model by calculating a confusion matrix (Scorer node) and visualizing the area under the curve (AuC) (ROC Curve node).

Reading data

Transforming data

Training model

Applying trained model

Evaluating model

Basic statistics