Book Image

SQL Server 2017 Machine Learning Services with R

By : Julie Koesmarno, Tomaž Kaštrun
Book Image

SQL Server 2017 Machine Learning Services with R

By: Julie Koesmarno, Tomaž Kaštrun

Overview of this book

R Services was one of the most anticipated features in SQL Server 2016, improved significantly and rebranded as SQL Server 2017 Machine Learning Services. Prior to SQL Server 2016, many developers and data scientists were already using R to connect to SQL Server in siloed environments that left a lot to be desired, in order to do additional data analysis, superseding SSAS Data Mining or additional CLR programming functions. With R integrated within SQL Server 2017, these developers and data scientists can now benefit from its integrated, effective, efficient, and more streamlined analytics environment. This book gives you foundational knowledge and insights to help you understand SQL Server 2017 Machine Learning Services with R. First and foremost, the book provides practical examples on how to implement, use, and understand SQL Server and R integration in corporate environments, and also provides explanations and underlying motivations. It covers installing Machine Learning Services;maintaining, deploying, and managing code;and monitoring your services. Delving more deeply into predictive modeling and the RevoScaleR package, this book also provides insights into operationalizing code and exploring and visualizing data. To complete the journey, this book covers the new features in SQL Server 2017 and how they are compatible with R, amplifying their combined power.
Table of Contents (12 chapters)

RevoScaleR Package

The RevoScaleR package comes with Microsoft Machine Learning R Server and R Services. It is also available with R Client, but with some limitations discussed in Chapter 2, Overview of Microsoft Machine Learning Server and SQL Server. Given the rapid development and constant upgrades, this chapter will cover version 8.X and version 9.X-the latter is also available with SQL Server 2017. Changes and upgrades in version 9.X are not to be overlooked and will be covered as well.

The following topics are covered in this chapter:

  • Limitations of R challenged
  • Scalable and distributive computational environment
  • Functions for data preparation
  • Functions for descriptive statistics
  • Functions for statistical tests and sampling
  • Functions for predictive modeling

Primarily, this R package is designed to be handled in ecosystems where clients would be connecting to Microsoft...