Lectures of ggplot2 for DSC 2015 R training. Co-work with mansunkuo and KuiMing. For more materials, see DSC2015Tutorial.
To view slides directly, see here.
The materials also contain a swirl session for user self-learning on the exercise part. To install the course, call the library by library(swirl) and use install_course_directory("DSC2015") to install the course. After that, use swirl() to initiate the course.