Compulsory exercise 2

The submission deadline is Monday, April 19th 2021, 23:59h

The compulsory 2 exercise sheet

Compulsory2.pdf
Compulsory2.Rmd
Compulsory2.html

List of corrections made after first upload: (last update 10.04.)

Problem 4c), the notation has been adapted to clarify the question.
Problem 3a), updated figures (results do not change, however!)
The R-hints in 1c) are updated: It should be
- x.train = model.matrix(birds ~ ., data = catdat.train)[, -1]
- x.test = model.matrix(birds ~ ., data = catdat.test)[, -1]
In 1e) (ii) you have to replace "a simple linear regression" by "a multiple linear regression".
I have clarified question 3c) (ii) - you have to report misclassification error, not MSE (it is a classification tree!).

Supervision:

Support for compulsory 2 will be given on April 12 and 13 via Whereby. You can click on one of these links, allow camera/microphone access, and then you have to "knock". We will let you in as soon as we are free, but be aware that it might take some time. You can also "knock" on two rooms, but then please remove yourself from the queue in the other room when you are let in into one of them.

Monday 14:15 - 16:00

Michail: https://whereby.com/tma4268-michail (14:15-15:00)

Emma: https://whereby.com/tma4268_exercise_emma (15:15-16:00)

Clara: https://whereby.com/tma4268-studass-clara

Steffi: https://whereby.com/tma4268-exercise-sessions

Tuesday 10:15-12:00

Emma: https://whereby.com/tma4268_exercise_emma

Clara: https://whereby.com/tma4268-studass-clara (from around 10:30)

Steffi: https://whereby.com/tma4268-exercise-sessions

Tuesday 16:15 - 18:00

Emma: https://whereby.com/tma4268_exercise_emma

Clara: https://whereby.com/tma4268-studass-clara

Michail: https://whereby.com/tma4268-michail