Use the preparation materials to prepare hand-written answers for the following questions. Please ask any questions on the "Questions -- Preparation Guide" on the course Team (see link on the homepage.)
- When entering data into Excel, what type of information is organized into rows and what type of information is organized into columns?
- What should be entered into the first row when entering data into Excel to create a CSV file?
- Give two examples of variable names that are not allowed in R?
- What file type must you save the data that you entered into Excel as?
- Where specifically should you save the file from Excel?
- Describe stacked data.
- What are the five data types in R? What type of variables does each represent?
- What does
read.csv()
do? - What does
peek()
do? - What does
headtail()
do? - What does
str()
do? - What does
unique()
do? - What does
factor()
do? - What does
levels()
do? - When is a
$
used in R? - What does
c()
do? - What questions do you have from this reading that you would like me to address? [Please be as specific as possible. Don’t just say “everything” or “I don’t understand anything.” Of course, you can ask questions about the reading before class on MS Teams (see link above).]