Data Science Tutorials

Explore PySpark’s groupBy method, which allows data professionals to perform aggregate functions on their data. This is a powerful way to quickly partition and summarize your big datasets, leveraging Spark’s powerful techniques.

Learn how to seamlessly integrate Tableau with Excel to transform static spreadsheets into powerful, interactive dashboards. Boost insights, streamline analysis, and improve your data-driven decisions.

Learn how to install MongoDB on Ubuntu, configure the service, and verify the setup in this beginner-friendly tutorial.

Learn how to use Excel’s MEDIAN() function to find the middle value in a dataset. Compare it with AVERAGE(), handle common quirks, and apply it your own work.

Learn about the key differences between Cursor and Cline to decide which tool best suits your project, budget, and preferred workflow.

Master LangGraph fundamentals — state, nodes, edges, memory — and build scalable AI agents with ReAct patterns, custom tools, and persistent state management.

Building, Testing, and Integrating the ArXiv Explorer MCP Server.

A complete hands-on guide to Docker networks, including network drivers, IP management, Swarm overlay setup, and performance tuning for scalable, secure containerized systems.

Learn to distinguish sensitivity and specificity, and appropriate use cases for each. Includes practical examples.

Learn how to use Python in Excel to run advanced analytics, create visuals, and apply machine learning within your existing spreadsheet workflows.

Learn what the Principle of Least Privilege (PoLP) means in cybersecurity, why it's essential for reducing the impact of attacks, and how to implement it across users, applications, and systems.

Calculate the last day of any month with Excel's EOMONTH() function. Use it to streamline financial schedules, reporting periods, and monthly workflows.