5.2 Interactive Tutorial 2

1. List of R commands covered this week

Function Package
%>% dplyr
group_by dplyr
summarize dplyr
n dplyr
filter dplyr
left_join dplyr
==, >, <= base
!= base
sum base
merge base
names base
st_coordinates sf
st_drop_geometry sf
st_as_sf sf
st_crs sf
extract terra

2. General Instructions

a) How to access tutorials

Through RStudio Add-in:

  • Install course Addins in RStudio: library(LandGenCourse)
  • In RStudio, click on Addins (top menu bar)
  • Follow instructions in the Console:
    • type: require(swirl)
    • type: swirl()
    • follow prompts
    • select course (“Landscape_Genetics_R_Course”) and tutorial (Weeks 1 - 8)

b) How to complete tutorial

Follow prompts in the RStudio Console.

To stop and resume a tutorial:

  • to stop and exit swirl, type: bye()
  • to resume where you stopped, type: swirl()

To restart tutorial from beginning:

  • type:swirl()
  • use a different name (simply add a number, like this: ‘MyName2’)

c) How to submit answers (participating institutions only)

The last prompt will ask whether you would like to submit the log of your tutorial session to Google Forms so that your instructor may evaluate your progress. This feature is only available for students from participating institutions.

If you choose ‘yes’, a form will open in your web browser. Complete and submit the form.

You can submit multiple attempts and the best attempt will be graded. You will receive full marks as long as you answered all questions (i.e. did not use ‘skip’). If you used ‘skip’ because you could not answer a question, please contact your instructor for advice.