This week we stepped into the most basic but important data structure called dataframe, several ways of constructing dataframes and importing dataframes are introduced. At the mean time, we reviewed the basic idea of extracting data by index/condition by giving some exercises to practice. Then, we focused on how to show the general picture of a dataset in numeric and graphic way at first glance.
Here is the link to our open lab’s GitHub repository: https://github.com/wbh0912/R-Open-Lab-Fall-2018
If you have further questions regarding topics covered in the material, please feel free to drop in during consultation hours or leave a comment.