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✅ Power BI Basics 📊🚀
👉 Power BI is one of the most popular Business Intelligence BI tools used for:
✔ Data visualization
✔ Dashboard creation
✔ Business reporting
It is widely used by:
✔ Data Analysts
✔ Business Analysts
✔ Data Scientists
🔹 1. What is Power BI?
Power BI is a Microsoft tool used to transform raw data into:
📊 Interactive dashboards
📈 Reports
📉 Visual insights
🔥 2. Components of Power BI
✅ Power BI Desktop
👉 Used to create reports & dashboards.
✅ Power BI Service
👉 Cloud platform for sharing reports online.
✅ Power BI Mobile
👉 Access dashboards on mobile devices.
🔹 3. Power BI Workflow ⭐
Data → Cleaning → Modeling → Visualization → Dashboard → Sharing
🔹 4. Connecting Data Sources
Power BI can connect with:
✔ Excel
✔ SQL Database
✔ CSV Files
✔ APIs
✔ Cloud services
🔹 5. Power Query Data Cleaning
Used for:
✔ Removing duplicates
✔ Changing data types
✔ Filtering rows
✔ Merging data
👉 Similar to data cleaning in Pandas.
🔹 6. Data Modeling
👉 Relationships between tables.
Examples:
✔ One-to-Many
✔ Many-to-One
🔥 7. Visualizations in Power BI
Popular visuals:
✔ Bar Chart
✔ Line Chart
✔ Pie Chart
✔ Table
✔ KPI Cards
✔ Maps
🔹 8. DAX Data Analysis Expressions
DAX is the formula language of Power BI.
Example:
Total Sales = SUM(Sales[Amount])
🔹 9. Why Power BI is Important?
✔ Highly demanded skill
✔ Used in real companies
✔ Important for dashboards & reporting
✔ Great for storytelling with data
🎯 Today’s Goal
✔ Understand Power BI basics
✔ Learn workflow
✔ Understand Power Query & DAX
✔ Learn dashboard concepts
Power BI Resources: Ссылка скрыта
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