Question $3$:

This question requires you to install and load "tidyverse" package before you start working.

You are provided with exp$\_$data.csv file that contains the data from an experiment.

Read this data into a dataframe "exp.data" and then convert this into long format into "data$\_$long" dataframe.

Export the data$\_$long as "exp$\_$data$\_$long.csv$"$

Convert the long format back into wide format into a dataframe "data$\_$wide"