This document outlines a lesson plan on data wrangling that covers dictionaries, control statements like while loops and if/else statements, and user-defined functions in Python. It includes examples and exercises for working with dictionaries to map keys to values, using control statements with dictionaries, defining functions, and taking user input. The lesson is intended for an information technology class at Thai-Nichi Institute of Technology in Bangkok and instructs students to complete exercises on generating Fibonacci sequences and calculating factorials using Google Collab.

1. Data Wrangling
Week 3
Dr. Ferdin Joe John Joseph
Faculty of Information Technology
Thai – Nichi Institute of Technology, Bangkok

2. Today’s Lesson
• Dictionaries
• Control Statements
• Demonstration
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

3. Dictionary
• Peculiar to python
• Used for mapping
• Hash tables and maps set of objects to a key value
• Available as built in
• Ideal for unstructured data
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

4. Usage
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

5. Dictionary keys
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

6. Dictionary values
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

7. Key value check
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

8. Add multiple values
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

9. Dict as objects
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

10. Dict: Change values
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Technology, Bangkok

11. Dict: Number of items
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Technology, Bangkok

12. Dict: Add new values
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Technology, Bangkok

13. Dict: Remove specific item
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Technology, Bangkok

14. Dict: Remove last inserted item
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

15. Dict: Remove item with specified key name
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Technology, Bangkok

16. Dict: Delete entire dictionary
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Technology, Bangkok

17. Dict: Emptying dictionary
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Technology, Bangkok

18. Copy a dictionary to another
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Technology, Bangkok

19. Copy using dict() function
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Technology, Bangkok

20. Nested Dictionaries
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Technology, Bangkok

21. Control Statements
• While loop
• If statement
• For loop
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

22. While loop: Syntax
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

23. While Loop: Example
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Technology, Bangkok

24. If statement: Syntax
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Technology, Bangkok

25. If statement: Example with error
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Technology, Bangkok

26. If statement: Example
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Technology, Bangkok

27. If-else syntax
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Technology, Bangkok

28. If-else: Example
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Technology, Bangkok

29. For Loop: Syntax
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Technology, Bangkok

30. For Loop: Example
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Technology, Bangkok

31. For Loop: Example
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Technology, Bangkok

32. For Loop: Example
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Technology, Bangkok

33. For Loop: Example
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Technology, Bangkok

34. Mix of control statements
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Technology, Bangkok

35. Exercise
• Write python code to generate Fibonacci series of length n. Do it in
Google Colab
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

36. Exercise
• Write python code to calculate factorial of a number n. Do it in
Google Colab
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

37. User Defined Function: Syntax
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

38. User Defined Functions
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

39. User Defined Functions
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

40. User Defined Functions
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

41. User Input
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

42. Exercise
• Write a user defined function to generate Fibonacci series with a
numeric value as input
• Write a user defined function to calculate the area of rectangle with
numeric values as input
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok

43. Lesson for Next Week
Faculty of Information Technology, Thai - Nichi Institute of
Technology, Bangkok
https://github.com/ferdinjoe/DSA201