Completed class activity 2 (Timothy Lee)#3

timothyLeeXQ wants to merge 4 commits intocore-methods-in-edm:mastercore-methods-in-edm/class-activity-2:masterfrom

timothyLeeXQ:mastertimothyLeeXQ/HUDK-4050-Data-Visualisation-Basics-in-R:masterCopy head branch name to clipboard