Book Image

Practical Predictive Analytics

By : Ralph Winters
Book Image

Practical Predictive Analytics

By: Ralph Winters

Overview of this book

This is the go-to book for anyone interested in the steps needed to develop predictive analytics solutions with examples from the world of marketing, healthcare, and retail. We'll get started with a brief history of predictive analytics and learn about different roles and functions people play within a predictive analytics project. Then, we will learn about various ways of installing R along with their pros and cons, combined with a step-by-step installation of RStudio, and a description of the best practices for organizing your projects. On completing the installation, we will begin to acquire the skills necessary to input, clean, and prepare your data for modeling. We will learn the six specific steps needed to implement and successfully deploy a predictive model starting from asking the right questions through model development and ending with deploying your predictive model into production. We will learn why collaboration is important and how agile iterative modeling cycles can increase your chances of developing and deploying the best successful model. We will continue your journey in the cloud by extending your skill set by learning about Databricks and SparkR, which allow you to develop predictive models on vast gigabytes of data.
Table of Contents (19 chapters)
Title Page
About the Author
About the Reviewers
Customer Feedback

Importing the sample notebook

The best way to run the examples in this chapter is by importing the notebook from an external site. To do this:

  1. Click on Workspace.
  2. Right-click on Training & Tutorials (or an alternate folder) and select Import.
  3. Drag the file downloaded from the publisher site into the drop area and click on Import.

See the following screenshot:

After you import your notebook, all of the code and output will appear and you will be free to follow along with the remaining code examples.

Notebook format

Databricks notebooks contain the written code in the cell in the upper pane, followed by any output in the lower cell, similar to the tutorial code for the 'diamonds' data which is displayed next.

To run the current cell, simply click on the triangle icon on the right.

  • When the cell has run, you will be able to view your output below your code. That could be a plot or the output from the console. Always check for error messages and warnings, especially if the output is not what you...