CS 125 • Midterm • Introduction to Data Analysis for Social Sciences

Our First Program

Variables in Python

Variable Types

Arithmetic Operators for Number Types

Arithmetic Operators for Other Types

Arithmetic Operators Example 1

Arithmetic Operators Example 2

Logical Operators for Number Types

Logical Operators for Other Types

Output in Python

Input in Python

Example 1

Example 2

What if...

if Statements

Type 1: if-else

Example 1

Type 2: if-elif-else

Example 2

Type 3: Nested if Statements

Example 3

What if...

while Loops

while Loops Example 1

while Loops Example 2

while Loops Example 3

while Loops Example 4

while Loops Example 5

From while To for

range Keyword

for Loops Example 1

for Loops Example 2

for Loops Example 3

for Loops Example 4

Nested for Loops

Nested for Loops Example 1

Our First Function

Functions Example 1

Functions Example 2

Functions Example 3

Functions Example 4

Scope of a Variable

Output Example 1

Output Example 2

Keyword Arguments / Multiple Return

Output Example 3

Introduction

Basic String Methods

Strings are Immutable

Example 1

Indexing

Slicing

Example 2

Example 3

Iterating Over Strings

Example 4

Advanced String Methods

Motivation

Lists

Lists are very similar to Strings

Example 1

Problem with Lists

Example 2

Advanced List Methods

Two Dimensional Lists

Example 3

Example 4

Example 5

Example 6

What is a tuple?

Tuples are very similar to lists

List of Tuples

Example 1

Example 2

What is a dictionary?

Adding/Removing/Accessing Items

Dictionary Methods

Example 1

Iterating Over Dictionaries

Example 2

Sorting Dictionaries

Nested Dictionaries

Example 3

Example 4

Example 5

Variables and Expressions 1

Variables and Expressions 2

Conditional Statements 1

Conditional Statements 2

Conditional Statements 3

Conditional Statements 4

for Loops and Ranges 1

for Loops and Ranges 2

for Loops and Ranges 3

for Loops and Ranges 4

Functions 1

Functions 2

Functions 3

Functions 4

Strings 1

Strings 2

Strings 3

Lists 1

Lists 2

Lists 3

Lists 4

Lists 5

Tuples 1

Tuples 2

Tuples 3

Dictionaries 1

Dictionaries 2

Variables, Data Types, Input/Output and Expressions 1

Variables, Data Types, Input/Output and Expressions 2

Relational Expressions and Conditional Statements 1

Relational Expressions and Conditional Statements 2

Relational Expressions and Conditional Statements 3

Iterations - for Loops and ranges 1

Iterations - for Loops and ranges 2

Iterations - for Loops and ranges 3

Functions 1

Functions 2

Functions 3

String - List - Tuple - Dictionary 1

String - List - Tuple - Dictionary 2

String - List - Tuple - Dictionary 3

String - List - Tuple - Dictionary 4

String - List - Tuple - Dictionary 5

String - List - Tuple - Dictionary 6