Week 2: Pipes, functions, and scripts

DATA 412/612 · September 9

Lectures

• 2.1 Pipes(PDF)
• 2.2 Writing Functions(PDF)
• 2.3 R Scripts(PDF)
• add_half.R (example script)
• fib.R (example script)
• rep_even.R (example script)

Labs

• Lab 2: Pipes, Functions, and Conditionals(PDF)
• Lab 2 solutions (password)

Additional readings

• R for Data Science: Functions
• R for Data Science: Workflow, scripts and projects
• Tidyverse Style Guide: Pipes
• What They Forgot to Teach You About R: Project-oriented workflow

Discussion

• When is a function better than copying a pipe three times?
• What goes wrong if an analysis lives as a loose file on the Desktop instead of in an RStudio project?