How it works...

The read.csv() function creates a data frame from the data in the .csv file. If we pass header=TRUE, then the function uses the very first row to name the variables in the resulting data frame:

> names(auto) 
 
[1] "No"           "mpg"          "cylinders" 
[4] "displacement" "horsepower"   "weight" 
[7] "acceleration" "model_year"   "car_name" 

The header and sep parameters allow us to specify whether the .csv file has headers and the character used in the file to separate fields. The header=TRUE and sep="," parameters are the defaults for the read.csv() function; we can omit these in the code example.