7 Programming II

• Start: Tuesday, October 5

7.1 Summary

This week we will iterate without loops and signal conditions to users.

7.2 Learning Objectives

After completing this week, you are expected to be able to:

• Iterate over objects with lapply() and sapply().
• Use message(), warning(), and stop() to signal conditions to users.

7.3 Reading

The following readings are optional, as they are all slightly more advanced than the level of this course.

Link	Source
Speed	HOPR
Iteration	R4DS
Conditions	AR

Three additional readings that are more basic:

• R Apply Family
• lapply function in R
• Function Iterations in R

7.4 Video

Title	Link	Mirror
7.1 - Programming II	7.1 - YouTube	7.1 - ClassTranscribe

7.5 Assignments

Quiz 06 will be released by the end of the day on Thursday.

Assignment	Deadline	Credit
Lab 05	Tuesday, October 5	100%
Lab 06	Tuesday, October 12	100%
Quiz 06	Thursday, October 14	105%
Quiz 05	Thursday, October 14	100%
Quiz 04	Thursday, October 14	85%

7.6 Office Hours

Staff and Link	Day	Time
Zoom with Linjun	Monday	8:00 PM - 10:00 PM
Zoom with Tyler	Tuesday	5:30 PM - 7:30 PM
Zoom with Lia	Wednesday	3:30 PM - 5:30 PM
Zoom with David	Wednesday	7:00 PM - 9:00 PM
Zoom with Earl	Thursday	9:00 AM - 11:00 AM
Zoom with Dave	Thursday	2:00 PM - 3:20 PM
Zoom with Dave	Thursday	7:00 PM - 9:00 PM
Discussion Forum	Any!	Any!