Day 4: Python If–Elif–Else Explained for Data Science | 120-Day Data Science Series
#python #vscode #datascience #machinelearning #genai #agenticai #pythonbeginners #codingforbeginners #datasciencetutorial #pythonsetup Day 4: Python If–Elif–Else Explained for Data Science | 120-Day Data Science Series Welcome to Day 4 of my 120-Day Data Science Series! Today’s video covers one of the MOST important foundations in Python — the If, Elif, and Else conditional statements, used everywhere in Data Science, Machine Learning, Deep Learning, NLP, Gen AI, and Agentic AI. If you are a beginner learning Python for Data Science, this lesson is a must-watch. 🔥 What’s Covered in Today’s Video Today you’ll understand conditional decision-making in Python with crystal-clear examples: ✅ 1. If Statement Basic condition Real-life examples True/False execution flow ✅ 2. If–Else Two-way decision making Even–odd check Pass/Fail logic Login check example ✅ 3. If–Elif–Else Chain Multiple conditions Grading system Menu selection Temperature ranges ✅ 4. Logical Operators (and, or, not) Combining multiple conditions Eligibility checks Validation rules for data ✅ 5. Shorthand If & Ternary Operator One-line conditional Quick checks Short expressions for data transformation ✅ 6. Nested If (If inside If) Multi-step validations Multiple-level logic Real-world examples ✅ 7. pass Statement Placeholder for future logic Writing clean and error-free code 🧠 Why This Matters for Data Science Conditional logic is used everywhere in Data Science: Data Cleaning Conditional Filtering Feature Engineering Business Rule Implementation ML Model Decision Logic NLP Preprocessing Agentic AI Workflow Branching Mastering this today will make everything ahead MUCH easier. 🚀 About the 120-Day Data Science Series This is a complete step-by-step journey that takes you from zero to job-ready Data Scientist, covering: ✔ Python for Data Science ✔ NumPy, Pandas, Matplotlib, Seaborn ✔ SQL, Power BI, Tableau ✔ Machine Learning (End-to-End) ✔ NLP, Gen AI, Agentic AI ✔ Real-world case studies ✔ Portfolio projects ✔ Interview preparation Python for Data Science Pandas, NumPy, Matplotlib, Seaborn SQL, Power BI, Tableau Machine Learning end-to-end NLP, Gen AI, Agentic AI Case studies Portfolio projects Make sure to subscribe and follow along every day! 🔗 Resources & Links 📘 Notebook / Code Files: https://drive.google.com/drive/folder... ▶️ Day 1 – VS Code Installation: • How to Install VS Code for Python (Step-by... ▶️ Day 2 – Python Basics: • Day 2: Python Basics for Data Science (Beg... 📂 Full Playlist (120-Day Data Science Series): • 120 Day Data Science Series 🔗 Follow Me on Socials 📸 Instagram: / datascientistafzal.ai 💼 LinkedIn: / afzal-mansury 📢 WhatsApp Channel: https://whatsapp.com/channel/0029VaCL... 🌐 TopMate (Ask me Anything): https://topmate.io/dashboard/home 🎥 Gear & Products I Use (Affiliate Links) 🎙️ Hollyland Lark M2 Combo : https://amzn.to/4nqWpst 💡 Digitek Ring Light : https://amzn.to/4oLDauW 📷 Digitek Tripod : https://amzn.to/43BjscY 💻 My Laptop Lenovo LOQ 2025 AMD Ryzen 7 250| NVIDIA RTX 5050 8GB : https://amzn.to/4ocqbCp 🎬 My Gaming Chair: https://amzn.to/4qAYrsI Other Title “Install VS Code for Python & Data Science | Beginner Series 2025”, “How to Install VS Code for Python (Step-by-Step) | Day 1 of Data Science Series”, “Data Science for Beginners – Day 1: Install VS Code & Set Up Python Environment”, “Start Your Data Science Journey – Day 1: Install VS Code the Right Way!”, “VS Code Installation Tutorial (Python Setup) | Data Science Series Day 1”, “Day 2: Python Basics for Data Science (Beginners Guide) | 120-Day Data Science Series”, “Python Basics You MUST Know for Data Science | Day 2 of 120-Day Data Science Series”, “Learn Python for Data Science – Day 2 | Essential Python Basics (120-Day Series)”, “Python for Data Science Beginners – Day 2 | Variables, Loops, Functions Explained”, “Day 2: Essential Python for Data Science | Variables, Loops, Functions | 120-Day Series, “Day 3: Python Data Structures, NumPy & Pandas Basics | 120-Day Data Science Series”, “Python Data Structures for Data Science (Lists, Tuples, Dicts) | Day 3 of 120-Day DS Series”, “Day 3: Python Data Structures + NumPy, Pandas & EDA Basics | Data Science Series (120 Days)”, “Learn Python Data Structures for Data Science | Day 3: NumPy, Pandas, NLP Basics”, “Python for Data Science – Day 3: Data Structures, NumPy, Pandas, Matplotlib (120-Day Series)”, “Day 3: Essential Python Data Structures for Data Science | NumPy & Pandas Explained”, “Python Data Structures & NumPy/Pandas Basics | Day 3 of Data Science Series”
