Setting up the Scala environment in Intellij

It is best to use an IDE like IntelliJ to edit Scala code, which provides faster development tools and coding assistance. Code completion and inspection makes coding and debugging faster and simpler, ensuring you focus on the end goal of learning math for machine learning.

IntelliJ 2016.3 brings Akka, Scala.meta, Memory view, Scala.js, and Migrators to the IntelliJ IDE as part of the Scala plugin. Now, let's set up the Scala environment in Intellij as follows:

1. Go to Under Preferences | Plugins, and verify if the Scala plugin is installed. SBT, which is a build tool for Scala, is configured by default as shown in the following screenshot:

1. Select File | New | Project from Existing resources | $GIT_REPO/Chapter_02/breeze or $GIT_REPO/Chapter_02/spark. Here, $GIT_REPO is the repository path where you have cloned the source code of the book.
2. Import project by selecting the SBT option:

1. Keep the default options of SBT, and click on Finish.
2. SBT will take a while to import references from build.sbt.

1. Finally, right click on the source file and select Run 'Vector'.