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R for Busy People (Cohort-0)

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  1. Installing R and RStudio
    1 Lesson
    |
    2 Quizzes
  2. The RStudio IDE
    1 Lesson
    |
    2 Quizzes
  3. Coding Basics
    1 Lesson
    |
    2 Quizzes
  4. Assignment | Workshop 1
    1 Quiz
  5. Data dive: Ebola in Sierra Leone
    1 Lesson
    |
    2 Quizzes
  6. RStudio Projects
    1 Lesson
    |
    2 Quizzes
  7. Workshop 2
    1 Lesson
    |
    1 Quiz
  8. Using R Markdown
    1 Lesson
    |
    2 Quizzes
  9. Data classes & structures (deprec)
    2 Lessons
  10. Workshop 3
    1 Lesson
    |
    1 Quiz
  11. Select & rename
    1 Lesson
    |
    3 Quizzes
  12. Filter
    1 Lesson
    |
    3 Quizzes
  13. Workshop 4
    1 Quiz
  14. Mutate
    1 Lesson
    |
    3 Quizzes
  15. Workshop 5
    1 Lesson
    |
    1 Quiz
  16. Conditional mutate
    1 Lesson
    |
    3 Quizzes
  17. Group by and summarize
    1 Lesson
    |
    2 Quizzes
  18. Workshop 6
    1 Lesson
    |
    1 Quiz
  19. Other grouped operations
    1 Lesson
    |
    2 Quizzes
  20. Workshop 7
    1 Lesson
    |
    1 Quiz
  21. Intro to ggplot2
    1 Lesson
    |
    2 Quizzes
  22. Scatter plots and smoothing
    1 Lesson
    |
    2 Quizzes
  23. Workshop 8
    1 Lesson
    |
    1 Quiz
  24. Lines, scales, and labels
    1 Lesson
    |
    2 Quizzes
  25. Overview of the EpiGraphHub web platform
  26. Data exploration on EpiGraphHub
    1 Quiz
  27. Workshop 9
    1 Lesson
    |
    1 Quiz
  28. Workshop 10
    1 Lesson
    |
    1 Quiz
  29. Final project
    1 Lesson
    |
    1 Quiz
  30. Getting help
    1 Lesson
    |
    1 Quiz
  31. Quiz contributions
    16 Lessons
Topic 19 of 31
In Progress

Other grouped operations

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Lesson code

Please download the zip folder below to code along with the instructor.

You need to unzip this folder to code along. Or “Extract All” on Windows. See our video explanation of this if you are unsure.


Lesson notes

The written guide below is an accompaniment to the lesson video. You may read through it if you prefer written tutorials to video content.

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Rodrigo

Why when we calculate each person’s weight rank by sex we get a rank with decimals?

Joy

Good question! In this dataset, there were some cases where multiple people had a the same weight, therefore they are all tied for the same rank. In such cases, the rank() function calculates the average rank and assigns it to all of them. For example, there are 2 people weighing 115 kgs in the female… Read more »

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