Data Science Tutorials

Calculate the strength of a linear relationship between two data sets. Use RSQ() to find the coefficient of determination quickly in Excel. Learn syntax, see practical examples, and troubleshoot common mistakes.

Understand what the coefficient of determination means in regression analysis. Learn how it’s calculated, how to interpret its value, and when to use adjusted R-squared and partial R-squared instead.

Learn how to use git revert to undo your latest Git commit without rewriting history. Understand its effects, compare it with git reset, and handle real-world edge cases.

Learn what Google’s SynthID is, how it works, and how to implement a SynthID watermark for text.

Identify all kinds of errors in your Excel formulas with the ISERROR() function.

Get the current date and time instantly in Excel with the NOW() function. Learn how to use NOW(), its syntax, and practical examples for dynamic spreadsheets.

This post breaks down the action-value function, a core concept in reinforcement learning, and walks you through implementing it using Q-learning and DQNs in Python.

Easily manage errors in your Excel formulas with the IFERROR() function. Learn how to use IFERROR() to keep your spreadsheets clean and professional.

Learn how LDA optimizes class separation while reducing dimensions in your machine learning projects.

This guide walks you through deploying, securing, and optimizing Azure Database for PostgreSQL, with hands-on tutorials for real-world applications.

This guide walks you through using Amazon EventBridge to build scalable, event-driven applications with practical examples, setup steps, and best practices.

Learn how to use row operations to convert matrices to row echelon form to solve systems of equations.