2018 round 2: module 04 feedback

[tavareshugo]

Join section:

• show how to join by two variables
• show how to join when names of columns to join by are different

Factors:

• Using factor(iris$Species) was confusing, because people are not used to this notation. Maybe using mutate directly might be best

[scortijo]

11 students Comments from students:

• perhaps a bit more time for the exercise
• Otherwise, everything was great!

Ideas to improve from us:

• Split this module into 2 modules: 5 modules in total (each 2 hours), with module 3 = select, filter, mutate, pipes and combine with graphs module 4 = summarise & group by, join, gather, spread, separate, factors and save file module 5 = exercise

• In exercise, add more hints (and in which module we covered it)