HW1

• HW1 grade: Pull request from Juhyun Kim. Merge to your master branch.

• HW1 solution sketch.

• Common issues:

  • reproducibility: absolute path vs relative path.

  • code style.

  • install packages that are absent

    if (!"tidyverse" %in% rownames(installed.packages()))  
      install.packages("tidyverse", repos="http://cran.rstudio.com/")
    

Today

• Shiny (cont’d).

• Databases.