Exercise #1 Installing and Loading Packages

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1) Perform a web search on package reshape, and obtain and file in your system under an appropriate directory the package PDF file.

- Done

2) Open R and install package reshape on your system using either: GUI from R, command line approach, or RStudio GUI (lower right panel).

- I used RStudio GUI (lower right panel): Pressed install and typed reshape and installed it.

3) Determine the active packages in your current R session.

- I just can see the list in RStudio on the lower right panel. Everything that has a checkmark is active.

4) Load reshape into your current R session, and again document packages in your R session; what happens?

Load reshape

library(reshape)

## Warning: package 'reshape' was built under R version 3.6.2

- Afte loading the package reshape a checkmark appears in the reshape item on the lower right panel

5) “Unload” reshape; what happens?

Detach reshape

detach("package:reshape", unload = T)

- After “unloading” the reshape package the checkmark goes away on the lower right panel.

6) Update your existing packages

- I just hit update on the lower right panel in the RStudio GUI.