Common questions on HW1

  1. Don’t put large data or output files in version control. GitHub does not accept files larger than 100MB.

    https://help.github.com/articles/working-with-large-files/

    If you accidentally commit large files into your local repo, save the changes you want to keep somewhere else, delete the local repo, git clone again, and copy and commit the changed files.

    For HW1, only need to version control and submit Rmd, R, and html files.

  2. HW1 due 2/2 @ 11:59PM.

  3. HW2 (tidyverse, cluster) will be posted this week.

Today

  • Data visualization with ggplot2 (cont’d).

  • Data transformation with dplyr.