Developing a habit of curiosity in data analysis

Not every day is about solving problems, some days are about understanding concepts. Day 38/100 — Data Structures & Algorithms Journey Today I focused on learning the Sliding Window technique instead of solving problems. Taking time to understand the pattern deeply before jumping into implementation. Today’s Focus: Understanding how sliding window works Learning when to expand and shrink the window Studying problem patterns where it applies Building intuition step by step Why this matters? Because strong concepts make problem-solving faster and more efficient. Key Takeaways: Learning is also progress Clarity builds confidence Patterns simplify complex problems Consistency matters more than intensity Taking it slow, but moving forward #Day38 #DSA #LeetCode #ProblemSolving #CodingJourney #100DaysOfCode #SoftwareEngineering #Python #InterviewPreparation #LearnInPublic #Consistency

🚀 Day 04 of My Machine Learning Journey: NumPy Data Types (dtypes) Today, I learned about NumPy data types (dtypes), which define the type of elements stored in an array. I explored: ✅ Different types like int, float, and bool ✅ How NumPy uses fixed data types for better performance ✅ Why choosing the right dtype helps optimize memory usage Understanding dtypes helps write more efficient and faster code — an important step for Machine Learning. 💡 #MachineLearning #NumPy #Python #LearningJourney #Day04

Day 3 Mastering the logic behind the code. 💻 Today’s deep dive: Booleans and Logical Operators. It’s fascinating to see how complex machine decisions are actually just a series of simple True or False evaluations. I’ve been exploring the Boolean data type and how comparison operations drive decision-making in software. It’s not just about 'running code' it's about structuring logic that scales. Progress over perfection. 📈 Moving through the 'Lesson Takeaways' today. There is something so satisfying about seeing a complex scenario broken down into a simple flowchart. What are you currently learning? Let's connect! #BuildInPublic #TechStack #CareerGrowth #ComputerScience #PythonProgramming #TechEducation #Python #LearningToCode #ContinuousImprovement

Day 3 Mastering the logic behind the code. 💻 Today’s deep dive: Booleans and Logical Operators. It’s fascinating to see how complex machine decisions are actually just a series of simple True or False evaluations. I’ve been exploring the Boolean data type and how comparison operations drive decision-making in software. It’s not just about 'running code'; it's about structuring logic that scales. Progress over perfection. 📈 Moving through the 'Lesson Takeaways' today. There is something so satisfying about seeing a complex scenario broken down into a simple flowchart. What are you currently learning? Let's connect! #BuildInPublic #TechStack #CareerGrowth #ComputerScience #PythonProgramming #TechEducation #Python #LearningToCode #ContinuousImprovement

Most analyses without correct inference, are measuring the wrong thing. I worked on a causal inference project using DiD and PSM to find the actual effect of a loyalty program on churn. Not correlation, Not gut feeling. Causation! Two methods. Both agreed: ~8pp churn reduction. Code on GitHub. Full walkthrough on YouTube 👇 #CausalInference #DataScience #Python #Statistics

I was cleaning a dataset — filtering rows, transforming values, the usual. My 5-line for loop worked fine. But I wanted to be "Pythonic." So I compressed it into a one-liner. Then I added another layer. The next morning I stared at it for two full minutes trying to decode my own logic. If I couldn't read it, my future teammates had no chance. This carousel breaks down: → The mental model that makes list comprehensions click instantly → The reading order most beginners get backwards → The exact rule for when to stop using them and write a real loop What's the longest you've stared at your own code before realizing you had no idea what it does? #Python #DataAnalytics #DataAnalyst #PythonTips #LearnInPublic #AHAMoments #DataAnalystJourney

🚀 LeetCode Grind: Find First and Last Position of Element in Sorted Array Just solved a classic searching problem! 💻 Problem: Given a sorted array, find the starting and ending position of a given target value. The Challenge: Achieving $O(\log n)$ runtime complexity. Key Takeaway: While a linear scan works, leveraging Binary Search twice (once for the left boundary and once for the right) is the key to meeting the performance constraints. It’s a great reminder of how powerful binary search is for optimizing search operations on sorted data. Checking off another one as I continue to sharpen my problem-solving skills! 🛠️ #LeetCode #CodingChallenge #Python #Algorithms #DataStructures #ProblemSolving #TechJourney #BinarySearch

Linear optimization is powerful, but reality is rarely a straight line. Many business problems—like tiered pricing or supply chain constraints—are actually 'piecewise.' 📈 We’re diving into how to solve these complex Piecewise Linear Optimization problems using Python and SciPy. By modeling these non-linear costs accurately, you can unlock much more precise decisions and drive significant cost savings across your operations. 💰 **Comment "Optimal" to get the full article** Learn more about Piecewise Linear Optimization in Python https://lnkd.in/gQQmtBnF #OperationsResearch #Optimization #Python #DataScience #SaizenAcuity

📊 Day 6 | K-Nearest Neighbors (KNN) 🤝📍 Today, I learned about K-Nearest Neighbors (KNN), a simple and intuitive Machine Learning algorithm. KNN works on the idea of distance — it classifies a data point based on the majority class of its nearest neighbors. 📌 In simple terms: “Similar data points are close to each other.” Example: ✔ Recommending products ✔ Classifying customers To understand this, I implemented KNN using Python and observed how it predicts based on nearby data points 💻 KNN is simple but powerful for many classification problems. #MachineLearning #KNN #DataScience #LearningInPublic #Python

𝐔𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝𝐢𝐧𝐠 𝐜𝐨𝐫𝐫𝐞𝐥𝐚𝐭𝐢𝐨𝐧𝐬 𝐦𝐚𝐝𝐞 𝐝𝐚𝐭𝐚 𝐚𝐧𝐚𝐥𝐲𝐬𝐢𝐬 𝐦𝐨𝐫𝐞 𝐢𝐧𝐭𝐞𝐫𝐞𝐬𝐭𝐢𝐧𝐠 𝐟𝐨𝐫 𝐦𝐞 While exploring datasets in Python recently, I spent some time understanding how correlation works between variables. Using pandas, it’s surprisingly easy to calculate a correlation matrix and see how different columns relate to each other. Sometimes two variables move together strongly, and sometimes there’s almost no relationship at all. What I found interesting is that correlations can quickly highlight patterns that might not be obvious just by looking at raw numbers. Still learning how to interpret these relationships properly, but it’s definitely making the analysis process more insightful. #Python #Pandas #DataAnalytics