Data Import
Lecture 9
Dr. Elijah Meyer + Konnie Huang
Duke University
STA 199 - Fall 2022
September 26, 2022
Exam Study Tips
– Take notes that you can reference
– Go back through feedback
– Revisit AEs
– Review keys
– Ask questions
Survey
– Review
– Feedback
Regrades
– What they are
and are not…
Goals
– Understand how to export data files
– Understand multiple ways to read in data
– “New” functions: str_detect and fill
– Review
Warm Up
Why should we bother with writing code to edit data rather than just editing the Excel file?
What is the difference between read.csv and read_csv?
read.csv vs read_csv
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ae-08
– Go to the course GitHub org and find your ae-08 (repo name will be suffixed with your GitHub name).
– Clone the repo in your container, open the Quarto document in the repo, and follow along and complete the exercises.
– Render, commit, and push your edits by the AE deadline – 3 days from today.
Recap of AE
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Recap of AE
– There are also special functions to work with dates and times! See preperation reading.
