DATA 133: Introduction to Data Science I

DATA 133: Introduction to Data Science I

DATA 133: Introduction to Data Science I (fall2025)

	Section 1
Professor:	Renzhi Cao
Office:	MCLT 248
Email:	caora@plu.edu
Phone:	253-535-7409
Office hours:	Online Schedule
Pre-course Survey:	https://docs.google.com/forms/d/e/1FAIpQLScPB7jLPh8bMVez4G3ttxebex9lCGUDOirMC7s94Zz56KkkjA/viewform?usp=header

Instructor: Renzhi Cao Assistant Professor Department of Computer Science Email	Guest Lecture: TBD Professor Department of Philosophy, Religion, Social Work, Biology, Math, or School of Business Email me if you are interested

Course logs

Day 16

Introduction to Python VI. Slides posted at Sakai

Extra time to take Quiz 5 before halloween
Quiz 6 next class
Example code for TicTacToe game: TicTacToeSolution.py

Announcements & Reminders:

Submit today's in-class exercise on Sakai, and get (Extra credits) when you finish at least 10 problems in codingbat string-2 and list-2: https://codingbat.com/python/String-2 https://codingbat.com/python/List-2
Submit your code together with your in-class exercise code to Sakai
Read book Page 20 - 35
Practice Jupyter

Day 15

Introduction to Python III. Slides posted at Sakai

Quiz 5
In-class exercises: Download PythonPairPractice2.py

Announcements & Reminders:

Finish at least five problems in codingbat warmup-2: https://codingbat.com/python/Warmup-2
Submit your code together with today's in-class exercise code to Sakai
Read book Page 20 - 35
Practice Jupyter

Day 13

Introduction to Python I. Slides posted at Sakai

Review mid-term exam
Practice code: Download: introduction.py

Announcements & Reminders:

Read book Page 1 - 13
Practice IDE Jupyter

Day 10

R debugging. Slides posted at Sakai

Debugging Practice (Submit on Sakai): PairDebugging.R

Announcements & Reminders:

Work on Project 1
Review day on next class, mid-term exam on next Thursday or Tuesday?

Day 9

R application for Plotting. Slides posted at Sakai

Practice : RPlot.html

Announcements & Reminders:

Work on Project 1
Finish the quiz 4 on Sakai before 10 pm

Day 7

Function in R. Slides posted at resources webpage

Take quiz #3.
Pair program: PairProgram7.R
Pair practice 6 solution: PairProgram6_solution.R

Announcements & Reminders:

Read R book from Page 70 to Page 78
Pair practice due on Friday. Submit your code on Sakai.
Day 8 is canceled, watch videos on Sakai instead, 1-on-1 meeting on Zoom, please email Dr. Cao.
Check Project 1 posted on Sakai.

Day 6

Control structure in R. Slides posted at Sakai

Download DATA133_example1.csv
Pair program: PairProgram6.R

Announcements & Reminders:

Read R book from Page 62 to Page 69
Pair practice due at beginning of next class. Submit your code on Sakai.
Quiz 3 on next class.

Day 5

Read and write from file. Slides posted on Sakai

Download DATA133_example1.csv
Pair program: PairProgram5.R

Announcements & Reminders:

Read R book from Page 23 to Page 41
Pair practice due at beginning of next class. Submit your code on Sakai.

Day 4

Matrices, factor, subsetting. Slides posted at Sakai

R examples for practice: R_basics_day5.html
Pair program: PairProgram4.R

Announcements & Reminders:

Quiz 2 on Thursday, closed computer, closed book.
Read R book from Page 12 to Page 22
Pair practice due at beginning of next class. Submit your code on Sakai

Day 3

Quiz 1 posted on Sakai. R data types, vector and list. Slides posted at resources subpage

In class practice: download Inclass3.R
R examples for practice: R_basics_day3.html
Pair program: PairProgram3.R

Announcements & Reminders:

Read R book from Page 12 to Page 22
Pair practice due at beginning of next class. Submit your code on Sakai.