Session 9

10 Novembro 2021, 13:30 • Nuno Miguel Brites

• 5.1 Manipulating data vs. working with data
• 5.2 tapply(), aggregate() and by(): Apply a function within a group
• 5.3 Tabulating data
• 5.4 The dplyr package

---

Session 8

3 Novembro 2021, 13:30 • Nuno Miguel Brites

• 3 Reading in data
• 3.1 Reading data from user input
• 3.2 The R working directory
• 3.3 Reading data from a text file (*.dat)
• 3.4 Variants of read.table()
• 3.5 Reading text files from Excel
• 4.1 Writing data to a text file
• 4.2 Variants of write.table()
• 4.3 Basic writing functions
• 4.4 Using file connections
• 4.5 Working with binary files: using save() and load()
• 4.6 Reading from SQL databases (extra topic)

---

Session 7

27 Outubro 2021, 13:30 • Nuno Miguel Brites

• • Part II
  • 2 Loops and flow control
  • 2.1 Loops with for
  • 2.2 Flow control: if and if else statements
  • 2.3 While loop example
  • 2.4 Loops and run times
  • 2.5 xapply() family: a substitute to loops

---

Session 6

20 Outubro 2021, 13:30 • Nuno Miguel Brites

• Part II
• 1 Functions
• 1.1 Simple Functions
• 1.2 Default arguments
• 1.3 Vectorial functions
• 1.4 Integrals and derivatives
• 1.5 Simple plots
• 1.6 Function source

---

Session 5

13 Outubro 2021, 13:30 • Nuno Miguel Brites

Part I

---