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10 DAX Functions Every Power BI Learner Should Know! 1. SUM    Scenario: Calculate the total sales amount.    DAX Formula: Total Sales = SUM(Sales[SalesAmount]) 2. AVERAGE    Scenario: Find the average sales per transaction.    DAX Formula: Average Sales = AVERAGE(Sales[SalesAmount]) 3. COUNTROWS    Scenario: Count the number of transactions.    DAX Formula: Transaction Count = COUNTROWS(Sales) 4. DISTINCTCOUNT    Scenario: Count the number of unique customers.    DAX Formula: Unique Customers = DISTINCTCOUNT(Sales[CustomerID]) 5. CALCULATE    Scenario: Calculate the total sales for a specific product category.    DAX Formula: Total Sales (Category) = CALCULATE(SUM(Sales[SalesAmount]), Products[Category] = "Electronics") 6. FILTER    Scenario: Calculate the total sales for transactions above a certain amount.    DAX Formula: High Value Sales = CALCULATE(SUM(Sales[SalesAmount]), FILTER(Sales, Sales[SalesAmount] > 1000)) 7. IF    Scenario: Create a calculated column to categorize transactions as "High" or "Low" based on sales amount.    DAX Formula: Transaction Category = IF(Sales[SalesAmount] > 500, "High", "Low") 8. RELATED    Scenario: Fetch product names from the Products table into the Sales table.    DAX Formula: Product Name = RELATED(Products[ProductName]) 9. YEAR    Scenario: Extract the year from the transaction date.    DAX Formula: Transaction Year = YEAR(Sales[TransactionDate]) 10. DATESYTD     Scenario: Calculate year-to-date sales.     DAX Formula: YTD Sales = TOTALYTD(SUM(Sales[SalesAmount]), Sales[TransactionDate]) I have curated the best interview resources to crack Power BI Interviews 👇👇 https://whatsapp.com/channel/0029Vai1xKf1dAvuk6s1v22c Hope you'll like it Like this post if you need more resources like this 👍❤️

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✨The STAR method is a powerful technique used to answer behavioral interview questions effectively. It helps structure responses by focusing on Situation, Task, Action, and Result. For analytics professionals, using the STAR method ensures that you demonstrate your problem-solving abilities, technical skills, and business acumen in a clear and concise way. Here’s how the STAR method works, tailored for an analytics interview: 📍 1. Situation Describe the context or challenge you faced. For analysts, this might be related to data challenges, business processes, or system inefficiencies. Be specific about the setting, whether it was a project, a recurring task, or a special initiative. Example: “At my previous role as a data analyst at XYZ Company, we were experiencing a high churn rate among our subscription customers. This was a critical issue because it directly impacted revenue.”* 📍 2. Task Explain the responsibilities you had or the goals you needed to achieve in that situation. In analytics, this usually revolves around diagnosing the problem, designing experiments, or conducting data analysis. Example: “I was tasked with identifying the factors contributing to customer churn and providing actionable insights to the marketing team to help them improve retention.”* 📍 3. Action Detail the specific actions you took to address the problem. Be sure to mention any tools, software, or methodologies you used (e.g., SQL, Python, data #visualization tools, #statistical #models). This is your opportunity to showcase your technical expertise and approach to problem-solving. Example: “I collected and analyzed customer data using #SQL to extract key trends. I then used #Python for data cleaning and statistical analysis, focusing on engagement metrics, product usage patterns, and customer feedback. I also collaborated with the marketing and product teams to understand business priorities.”* 📍 4. Result Highlight the outcome of your actions, especially any measurable impact. Quantify your results if possible, as this demonstrates your effectiveness as an analyst. Show how your analysis directly influenced business decisions or outcomes. Example: “As a result of my analysis, we discovered that customers were disengaging due to a lack of certain product features. My insights led to a targeted marketing campaign and product improvements, reducing churn by 15% over the next quarter.”* Example STAR Answer for an Analytics Interview Question: Question: *"Tell me about a time you used data to solve a business problem."* Answer (STAR format):  🔻*S*: “At my previous company, our sales team was struggling with inconsistent performance, and management wasn’t sure which factors were driving the variance.”  🔻*T*: “I was assigned the task of conducting a detailed analysis to identify key drivers of sales performance and propose data-driven recommendations.”  🔻*A*: “I began by collecting sales data over the past year and segmented it by region, product line, and sales representative. I then used Python for #statistical #analysis and developed a regression model to determine the key factors influencing sales outcomes. I also visualized the data using #Tableau to present the findings to non-technical stakeholders.”  🔻*R*: “The analysis revealed that product mix and regional seasonality were significant contributors to the variability. Based on my findings, the company adjusted their sales strategy, leading to a 20% increase in sales efficiency in the next quarter.” Hope this helps you 😊

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Data Analysis is not just SQL. Data Analysis is not just PowerBI/Tableau. Data Analysis is not just Python. Data Analysis is not just Excel. 𝐃𝐚𝐭𝐚 𝐀𝐧𝐚𝐥𝐲𝐬𝐢𝐬 𝐢𝐬 𝐚𝐛𝐨𝐮𝐭: ✅𝐈𝐧𝐬𝐢𝐠𝐡𝐭 𝐃𝐢𝐬𝐜𝐨𝐯𝐞𝐫𝐲: It's about uncovering the stories hidden within the data. ✅𝐃𝐞𝐜𝐢𝐬𝐢𝐨𝐧 𝐌𝐚𝐤𝐢𝐧𝐠: It's about informing business decisions with data-driven insights. ✅ 𝐓𝐫𝐞𝐧𝐝 𝐀𝐧𝐚𝐥𝐲𝐬𝐢𝐬: It's about identifying trends and patterns to forecast future outcomes. ✅ 𝐏𝐫𝐨𝐛𝐥𝐞𝐦-𝐒𝐨𝐥𝐯𝐢𝐧𝐠: It's about addressing business challenges with data-backed solutions. ✅ 𝐂𝐫𝐢𝐭𝐢𝐜𝐚𝐥 𝐓𝐡𝐢𝐧𝐤𝐢𝐧𝐠: It's about evaluating data with an analytical mindset to ensure accurate and reliable conclusions. ✅ 𝐂𝐨𝐧𝐭𝐢𝐧𝐮𝐨𝐮𝐬 𝐈𝐦𝐩𝐫𝐨𝐯𝐞𝐦𝐞𝐧𝐭: It's about iterating and refining processes for better outcomes. Tools like Power BI, Tableau, Excel, and Python are just that—tools. The real value lies in how we use them to transform data into actionable insights.

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Are you looking to become a machine learning engineer? 🤖 The algorithm brought you to the right place! 🚀 I created a free and comprehensive roadmap. Let’s go through this thread and explore what you need to know to become an expert machine learning engineer: 📚 Math & Statistics Just like most other data roles, machine learning engineering starts with strong foundations from math, especially in linear algebra, probability, and statistics. Here’s what you need to focus on: - Basic probability concepts 🎲 - Inferential statistics 📊 - Regression analysis 📈 - Experimental design & A/B testing 🔍 - Bayesian statistics 🔢 - Calculus 🧮 - Linear algebra 🔠 🐍 Python You can choose Python, R, Julia, or any other language, but Python is the most versatile and flexible language for machine learning. - Variables, data types, and basic operations ✏️ - Control flow statements (e.g., if-else, loops) 🔄 - Functions and modules 🔧 - Error handling and exceptions ❌ - Basic data structures (e.g., lists, dictionaries, tuples) 🗂️ - Object-oriented programming concepts 🧱 - Basic work with APIs 🌐 - Detailed data structures and algorithmic thinking 🧠 🧪 Machine Learning Prerequisites - Exploratory Data Analysis (EDA) with NumPy and Pandas 🔍 - Data visualization techniques to visualize variables 📉 - Feature extraction & engineering 🛠️ - Encoding data (different types) 🔐 ⚙️ Machine Learning Fundamentals Use the scikit-learn library along with other Python libraries for: - Supervised Learning: Linear Regression, K-Nearest Neighbors, Decision Trees 📊 - Unsupervised Learning: K-Means Clustering, Principal Component Analysis, Hierarchical Clustering 🧠 - Reinforcement Learning: Q-Learning, Deep Q Network, Policy Gradients 🕹️ Solve two types of problems: - Regression 📈 - Classification 🧩 🧠 Neural Networks Neural networks are like computer brains that learn from examples 🧠, made up of layers of "neurons" that handle data. They learn without explicit instructions. Types of Neural Networks: - Feedforward Neural Networks: Simplest form, with straight connections and no loops 🔄 - Convolutional Neural Networks (CNNs): Great for images, learning visual patterns 🖼️ - Recurrent Neural Networks (RNNs): Good for sequences like text or time series 📚 In Python, use TensorFlow and Keras, as well as PyTorch for more complex neural network systems. 🕸️ Deep Learning Deep learning is a subset of machine learning that can learn unsupervised from data that is unstructured or unlabeled. - CNNs 🖼️ - RNNs 📝 - LSTMs ⏳ 🚀 Machine Learning Project Deployment Machine learning engineers should dive into MLOps and project deployment. Here are the must-have skills: - Version Control for Data and Models 🗃️ - Automated Testing and Continuous Integration (CI) 🔄 - Continuous Delivery and Deployment (CD) 🚚 - Monitoring and Logging 🖥️ - Experiment Tracking and Management 🧪 - Feature Stores 🗂️ - Data Pipeline and Workflow Orchestration 🛠️ - Infrastructure as Code (IaC) 🏗️ - Model Serving and APIs 🌐 Best Data Science & Machine Learning Resources: https://topmate.io/coding/914624 ENJOY LEARNING 👍👍

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Python Topics with Projects ✅

A-Z of Data Science Part-2

A-Z of Data Science Part-1

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🚀 Complete Roadmap to Become a Data Scientist in 5 Months 📅 Week 1-2: Fundamentals ✅ Day 1-3: Introduction to Data Science, its applications, and roles. ✅ Day 4-7: Brush up on Python programming 🐍. ✅ Day 8-10: Learn basic statistics 📊 and probability 🎲. 🔍 Week 3-4: Data Manipulation & Visualization 📝 Day 11-15: Master Pandas for data manipulation. 📈 Day 16-20: Learn Matplotlib & Seaborn for data visualization. 🤖 Week 5-6: Machine Learning Foundations 🔬 Day 21-25: Introduction to scikit-learn. 📊 Day 26-30: Learn Linear & Logistic Regression. 🏗 Week 7-8: Advanced Machine Learning 🌳 Day 31-35: Explore Decision Trees & Random Forests. 📌 Day 36-40: Learn Clustering (K-Means, DBSCAN) & Dimensionality Reduction. 🧠 Week 9-10: Deep Learning 🤖 Day 41-45: Basics of Neural Networks with TensorFlow/Keras. 📸 Day 46-50: Learn CNNs & RNNs for image & text data. 🏛 Week 11-12: Data Engineering 🗄 Day 51-55: Learn SQL & Databases. 🧹 Day 56-60: Data Preprocessing & Cleaning. 📊 Week 13-14: Model Evaluation & Optimization 📏 Day 61-65: Learn Cross-validation & Hyperparameter Tuning. 📉 Day 66-70: Understand Evaluation Metrics (Accuracy, Precision, Recall, F1-score). 🏗 Week 15-16: Big Data & Tools 🐘 Day 71-75: Introduction to Big Data Technologies (Hadoop, Spark). ☁️ Day 76-80: Learn Cloud Computing (AWS, GCP, Azure). 🚀 Week 17-18: Deployment & Production 🛠 Day 81-85: Deploy models using Flask or FastAPI. 📦 Day 86-90: Learn Docker & Cloud Deployment (AWS, Heroku). 🎯 Week 19-20: Specialization 📝 Day 91-95: Choose NLP or Computer Vision, based on your interest. 🏆 Week 21-22: Projects & Portfolio 📂 Day 96-100: Work on Personal Data Science Projects. 💬 Week 23-24: Soft Skills & Networking 🎤 Day 101-105: Improve Communication & Presentation Skills. 🌐 Day 106-110: Attend Online Meetups & Forums. 🎯 Week 25-26: Interview Preparation 💻 Day 111-115: Practice Coding Interviews (LeetCode, HackerRank). 📂 Day 116-120: Review your projects & prepare for discussions. 👨‍💻 Week 27-28: Apply for Jobs 📩 Day 121-125: Start applying for Entry-Level Data Scientist positions. 🎤 Week 29-30: Interviews 📝 Day 126-130: Attend Interviews & Practice Whiteboard Problems. 🔄 Week 31-32: Continuous Learning 📰 Day 131-135: Stay updated with the Latest Data Science Trends. 🏆 Week 33-34: Accepting Offers 📝 Day 136-140: Evaluate job offers & Negotiate Your Salary. 🏢 Week 35-36: Settling In 🎯 Day 141-150: Start your New Data Science Job, adapt & keep learning! 🎉 Enjoy Learning & Build Your Dream Career in Data Science! 🚀🔥

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Sber500 is now accepting applications for its 6th batch — an international accelerator for tech startups in AI, DeepTech, FinTech, and beyond. This fully online, 12-week program is designed for early-stage teams — whether you’ve got an MVP or a product ready to scale. Open to founders worldwide, with a special focus on BRICS countries. The participation is totally free! 🚀 What’s in it for you: • Mentors from 17+ countries, including experts from Google, Amazon, Oracle • Access to VCs, corporate partners, and pilot opportunities • PR visibility in a fast-growing ecosystem • Strategic entry into the Russian market The top 25 teams will pitch live at Demo Day in Moscow to investors, corporates, and Sber leadership. Yes, the application form is detailed — and that’s intentional. The more effort you put in now, the greater your chances of joining. Don’t rush it — this is your gateway to major opportunities. 📅 Deadline extended: June 9 Apply now → https://tinyurl.com/6wunzste If you’re building something bold and ambitious — this is your moment. Join us!