Loading Data from Webpage I

Download the BrainHead.csv data file from the class webpage into your “R Directory”, load the data into a data.frame in R, and identify (i) how many variables, (ii) the names of the variables, and (iii) how many individuals are in the data.frame.


Loading Your Own Data I

Record three variables (at least one quantitative and one categorical) about at least five individuals in this classroom. [Don’t be shy] Enter these data into a CSV file, load the data into a data.frame in R, and make sure that there are as many variables and individuals as you expect and that the variables are named as you expect.

 


Additional Practice

Here are more exercises for practice if time permits.