Essential Numpy and Pandas
Chapter 1: Introduction to Data Handling in Python
What are Numpy and Pandas?
Importance for AI and Data Science
Setting Up Your Environment
Running Your First Code Snippets
Introduction to Jupyter Notebooks
Hands-on practical: Setup and Verification
Chapter 2: Getting Started with NumPy Arrays
Understanding NumPy N-dimensional Arrays
Creating Arrays from Python Lists
Built-in Array Creation Functions
Understanding Array Data Types
Basic Array Attributes
Hands-on practical: Creating and Inspecting Arrays
Chapter 3: NumPy Array Indexing and Slicing
Accessing Single Elements
Slicing 1D Arrays
Slicing 2D Arrays
Boolean Indexing
Fancy Indexing
Modifying Array Subsets
Hands-on practical: Selecting Data from Arrays
Chapter 4: Fundamental NumPy Operations
Basic Arithmetic Operations
Introduction to Universal Functions (ufuncs)
Mathematical and Statistical Functions
Logical Operations on Arrays
Introduction to Broadcasting
Hands-on practical: Performing Calculations on Arrays
Chapter 5: Introduction to Pandas
What is Pandas?
Pandas Data Structure: Series
Creating Series
Pandas Data Structure: DataFrame
Creating DataFrames
Inspecting DataFrames
Hands-on practical: Creating and Examining Series/DataFrames
Chapter 6: Loading and Saving Data with Pandas
Reading Data from CSV Files
Reading Data from Excel Files
Reading Data from Other Formats
Writing Data to CSV Files
Writing Data to Excel Files
Hands-on practical: Importing and Exporting Datasets
Chapter 7: Data Selection and Indexing in Pandas
Selecting Columns
Selecting Rows Using Labels (.loc)
Selecting Rows Using Integer Position (.iloc)
Mixing Label and Position Based Indexing
Conditional Selection (Boolean Indexing)
Setting DataFrame Index
Resetting DataFrame Index
Hands-on practical: Accessing Specific Data Subsets
Chapter 8: Basic Data Manipulation with Pandas
Detecting Missing Data
Handling Missing Data: Dropping
Handling Missing Data: Filling
Dropping Columns and Rows
Adding New Columns
Modifying Existing Columns
Renaming Columns
Sorting Data
Hands-on practical: Cleaning and Modifying DataFrames
Chapter 9: Grouping and Aggregating Data
The Split-Apply-Combine Concept
Grouping Data with groupby()
Applying Aggregation Functions
Applying Multiple Aggregations
Grouping by Multiple Columns
Iterating Through Groups
Hands-on practical: Summarizing Data with GroupBy
Chapter 10: Combining DataFrames
Introduction to Combining Data
Concatenating DataFrames (pd.concat)
Database-Style Merging (pd.merge)
Understanding Merge Types (Joins)
Merging on Index
Index-Based Joining (.join)
Hands-on practical: Combining Datasets
NumPy Array Indexing and Slicing
Now that you can create NumPy arrays, the focus shifts to working with the data they contain. This chapter introduces the techniques for accessing and modifying elements within these arrays.
You will learn how to:
- Retrieve individual elements using their index (e.g.,
array[i]orarray[row, col]). - Extract sub-arrays using slicing notation for both 1D and 2D structures (e.g.,
array[start:stop:step]). - Select data based on logical conditions through boolean indexing.
- Access specific, potentially non-contiguous elements using integer arrays, often called fancy indexing.
- Modify values within an array using these selection techniques.
Mastering these indexing and slicing methods is fundamental for effective data manipulation with NumPy.
Sections
3.1 Accessing Single Elements
3.2 Slicing 1D Arrays
3.3 Slicing 2D Arrays
3.4 Boolean Indexing
3.5 Fancy Indexing
3.6 Modifying Array Subsets
3.7 Hands-on practical: Selecting Data from Arrays
© 2025 ApX Machine Learning