A) Prepare for in-class exercises

Watching all videos for this section takes ~ 51 min. Hint: Watch the videos with a higher reproduction speed to save some time.

Instructions

• Create a new Rmd file, save it in your document folder with the name "loops-prep.Rmd".
• Write a title for this section (using a first level header, indicated with one hashtag followed by a blank space # )
• After (or during) watching each video, write the code that is being explained by the virtual instructor in your Rmd file.
  • Write a subtitle before the code section of each video (as a second level header indicated with two hastags followed by a blank space ## ).
  • Write each piece of code explained in the video in its own R chunk.
  • ⚠️ If the code gives an error or does not run, you can tell R not to run it by using the option eval = FALSE inside the R chunk:

    ```{r, eval = FALSE}
    your code that does not run goes here.
    ```
    

• Knit to pdf.
• Git add, commit and push both files (Rmd and PDF).

1. Watch the 9min 44s video Basic For Loops in R.
   • Write a subtitle header for this section.
   • Write and run the code that was explained on the video.
2. Watch the 15min 43s video Looping By Index.
   • Write a subtitle header for this section.
   • Write and run the code that was explained on the video.
3. Watch the 5min 48s video Looping Over Multiple Objects.
   • Write a subtitle header for this section.
   • Write and run the code that was explained on the video.
4. Watch the 9min 21s video Looping Using Functions.
   • Write a subtitle header for this section.
   • Write and run the code that was explained on the video.
5. Watch the 10min 21s video Looping Over Files.
   • Write a subtitle header for this section.
   • Write and run the code that was explained on the video.