Reading 12


Read the following chapters in R for Data Science before class on October 18:

  • In Chapter 13, sections 13.1–13.4
  • All of Chapter 20

The sections in Chapter 13 provide an introduction to the concept of relational data and how to combine tables using joins. Chapter 20 discusses the vector data type and how it relates to programming in R.

Github discussion thread

Click here to go to the question and answer thread for Reading 12.

To receive a question post credit

Write a post in this thread that contains at least 2 questions you had about this reading before the end of the day on October 19. If you have more than 2 questions, that is okay! This is to help you learn.

Your questions should be written as complete sentences, and make sure that you include enough context in your post that other students will understand what you’re asking about.

To receive an answer post credit

Read through the questions asked by other students in this thread. Answer one of the questions using full sentences before the end of the day on October 25. When answering the question, tag the student that asked the question by typing @username, replacing the word “username” with their actual Github account name. In addition, tag me @jkglasbrenner and the CDS-101 grader @shuaibm at the top or bottom of your response.