Getting Data Into R

To prepare for this module, please answer the following questions from the preparation readings and videos. Please contact the professor if you have questions.

- What are the names of the scientists who developed R?
- Where was R first developed?
- What is the difference between R and RStudio.
- Should you save the “workspace” in R?
- How do you assign the result of an expression to an object (i.e., how do you use the assignment operator)?
- How can you both assign the results of an expression to an object and see the results of that expression at the same time?
- What is a function in R?
- What are contained in the parentheses that follow a function name? What is the purpose of these items?
- How does a factor data type differ from a character data type?
- When entering data into Excel to create a CSV file, what type of information is organized into rows and what type is organized into columns?
- What should be entered into the first row when entering data into Excel to create a CSV file?
- What does the
`read.csv()`

function in R do? - What does the
`headtail()`

function in R do? - When is a
`$`

used in R? - What is the difference in R between a data.frame and a vector?
- What function in R is used to create a vector of items that are all of the same data type?