Just finished an amazing tutorial textbook in 3 consecutive days. is such a fantastic book for both beginners and mid-level learners like me to review all the aspects of Data Science using R systematically and grab a more thorough understanding of data tidying methods, how to treat different data format effectively and utilize dplyr, lubridate and ggplot2 to do exploratory data analysis (EDA) in just a few minutes.

Please refer to my Study Notes at https://anchengdeng.com//Rmarkdown/R_for_DataSience_Study.html because I couldn't transform Rmarkdown generated html file to wordpress blog.

Big thanks to my idol Hadley Wickham and my 'course TA' Jeffrey B. Arnold! LOL

Source:
1. R for Data Science Textbook
2. R for Data Science Soln