Python NumPy for Beginners: NumPy Specialization for Data Science

Title Page....2 Copyright....3 How to Contact Us....4 About the Publisher....5 AI Publishing Is Searching for Authors Like You....7 Table of Contents....8 Preface....13 Book Approach....14 Who Is This Book For?....15 How to Use This Book?....16 About the Author....18 Get in Touch With Us....19 Download the PDF version....20 Warning....21 Chapter 1: Introduction....22 1.1. What Is NumPy?....23 1.2. Environment Setup and Installation....25 1.2.1. Windows Setup....25 1.2.2. Mac Setup....32 1.2.3. Linux Setup....40 1.2.4. Using Google Colab Cloud Environment....43 1.2.5. Writing Your First Program....48 1.3. Python Crash Course....54 1.3.1. Python Syntax....54 1.3.2. Python Variables and Data Types....60 1.3.3. Python Operators....63 1.3.4. Conditional Statements....79 1.3.5. Iteration Statements....88 1.3.6. Functions....94 1.3.7. Objects and Classes....100 Exercise 1.1....105 Exercise 1.2....106 Chapter 2: NumPy Basics....107 2.1. Introduction to NumPy Arrays....108 2.2. NumPy Data Types....109 2.3. Creating NumPy Arrays....120 2.3.1. Using Array Method....120 2.3.2. Using Arrange Method....124 2.3.3. Using Ones Method....128 2.3.4. Using Zeros Method....132 2.3.5. Using Eyes Method....136 2.3.6. Using Random Method....138 2.4. Printing NumPy Arrays....145 2.5. Adding Items in a NumPy Array....160 2.6. Removing Items from a NumPy Array....171 Exercise 2.1....180 Exercise 2.2....181 Chapter 3: NumPy Array Manipulation....182 3.1. Sorting NumPy Arrays....183 3.1.1. Sorting Numeric Arrays....183 3.1.2. Sorting Text Arrays....185 3.1.3. Sorting Boolean Arrays....187 3.1.4. Sorting 2-D Arrays....189 3.1.5. Sorting in Descending Order....191 3.2. Reshaping NumPy Arrays....194 3.2.1. Reshaping from Lower to Higher Dimensions....194 3.2.2. Reshaping from Higher to Lower Dimensions....202 3.3. Indexing and Slicing NumPy Arrays....209 3.4. Broadcasting NumPy Arrays....224 3.5. Copying NumPy Arrays....233 3.6. NumPy I/O Operations....238 3.6.1. Saving a NumPy Array....238 3.6.2. Loading a NumPy Array....240 Exercise 3.1....245 Exercise 3.2....246 Chapter 4: NumPy Tips and Tricks....247 4.1. Statistical Operations with NumPy....248 4.1.1. Finding the Mean....248 4.1.2. Finding the Median....252 4.1.3. Finding the Max and Min Values....256 4.1.4. Finding Standard Deviation....264 4.1.5. Finding Correlations....268 4.2. Getting Unique Items and Counts....271 4.3. Reversing a NumPy Array....280 4.4. Importing and Exporting CSV Files....285 4.4.1. Saving a NumPy File as CSV....285 4.4.2. Loading CSV Files into NumPy Arrays....289 4.5. Plotting NumPy Arrays with Matplotlib....292 Exercise 4.1....300 Exercise 4.2....301 Chapter 5: Arithmetic and Linear Algebra Operations with NumPy....302 5.1. Arithmetic Operations with NumPy....303 5.1.1. Finding Square Roots....303 5.1.2. Finding Logs....305 5.1.3. Finding Exponents....307 5.1.4. Finding Sine and Cosine....309 5.2. NumPy for Linear Algebra Operations....312 5.2.1. Finding the Matrix Dot Product....312 5.2.2. Element-wise Matrix Multiplication....314 5.2.3. Finding the Matrix Inverse....316 5.2.4. Finding the Matrix Determinant....318 5.2.5. Finding the Matrix Trace....320 5.2.6. Solving a System of Linear Equations with Python....322 Exercise 5.1....329 Exercise 5.2....330 Chapter 6: Implementing a Deep Neural Network with NumPy....331 6.1. Neural Network with a Single Output....332 6.1.1. Feed Forward....338 6.1.2. Backpropagation....338 6.1.3. Implementation with NumPy Library....340 6.2. Neural Network with Multiple Outputs....354 6.2.1. Feed Forward....360 6.2.2. Backpropagation....361 6.2.3. Implementation with NumPy Library....362 Exercise 6.1....370 Exercise 6.2....371 Appendix: Working with Jupyter Notebook....373 Exercise Solutions....388 Exercise 1.1....389 Exercise 1.2....390 Exercise 2.1....391 Exercise 2.2....393 Exercise 3.1....395 Exercise 3.2....397 Exercise 4.1....399 Exercise 4.2....401 Exercise 5.1....403 Exercise 5.2....404 Exercise 6.1....406 Exercise 6.2....408 From the Same Publisher....412 Back Cover....417