Project 1

In this project, I have done the following:

1. Forked the repository at https://github.com/rdpeng/ExData_Plotting1
2. Created four scripts (plot1.R, plot2.R, plot3.R, plot3.R) that read in previously downloaded data, process it, and then create plots in PNG form.
3. Uploaded the scripts and the PNG plots (plot1.png, plot2.png, plot2.png, plot4.png).

Each script contains more details in comment form.