The sources detail Power BI Desktop's core operations, focusing on acquiring and visualizing data from diverse external sources. Three CoreLab exercises provide hands-on experience:

• External Excel files: Users learn to download open government data (e.g., unemployment rates) and create various visualizations like cross-analysis slicers, clustered bar charts, pie charts, and line charts.
• Web data (Wiki): Connect to specific URLs to load web tables, visualizing data such as Olympic medal counts with clustered bar charts, card visualizations, and pie charts.
• Access databases: This advanced exercise emphasizes data transformation using Power Query (e.g., correcting membership IDs) and establishing accurate data relationships in the model view. Visualizations include product sales trends and member purchase analysis.

The modules highlight Power BI's capability for interactive and dynamic data visualization, integrating diverse sources for insightful analysis. Proper data cleaning and relationship management are crucial for accurate analytical results, and users are encouraged to consider the purpose of visualizations to derive business value.

Youtube : https://youtu.be/R-jX-ADM7bE
www.youtube.com/@LittlePrinceQuestLab

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