Data Science Educational Resources
StrataScratch is a data science educational platform with over 1,000+ real interview questions from your favorite companies.
Getting Started with PlotlyJS: A Beginner's Guide
Learn how to create interactive charts with PlotlyJS in JavaScript—no setup needed, just code directly in your browser.
Nathan Rosidi -
ML Interviews are Ridiculous And All Over the Place
If you think ML interviews have become crazy lately, you’re not imagining it. They are ridiculous, and we’ll examine why in this ranty article.Nathan Rosidi -
Data Structures and Algorithms in Python for Beginners
The article will teach you the basics of data structures and algorithms in Python. Arrays, lists, dictionaries, tuples, sets, and queues are all there and more.Nathan Rosidi -
3D Plot using Plotly (with Examples)
Discover how to create dynamic 3D plots with Plotly, using real-world datasets like Rotten Tomatoes movies, and unlock insights across industries.Nathan Rosidi -
5 Alternatives to Matplotlib That Make Data Visualization a Breeze
If you find Matplotlib leaving a lot to be desired, you’re not the only one. While it’s not a bad library, you might find these five alternatives better for specific uses.Nathan Rosidi -
How to Find the Minimum Value in SQL (with Examples)
Finding the minimum in SQL is easy: just use the MIN() aggregate function. In this article, you will learn how to do it in different real-case scenarios.Nathan Rosidi -
Biases When Hiring For Data Science Roles
What are the biases data scientists face in hiring? These biases are sneaky, so you should know how to handle them both as a candidate and a hiring manager.Nathan Rosidi -
Easy Guide to Python Hashmaps
What are Python hashmaps, what are the basic operations and advanced techniques, and how to use them in practice? We answer all that and more in this article.Nathan Rosidi -
Mastering Row Number Handling in SQL Queries
ROW_NUMBER() is one of the essential ranking window functions in SQL. Learn where you can use it and how it works with ORDER BY and PARTITION BY window clauses.Nathan Rosidi -
Dating Your Data Science Team: Red & Green Flags to Watch For
How do you find a perfect data team for yourself? What to look for and what to avoid in your search? Heed these red and green flags to keep you on the right track.Nathan Rosidi -
Top 5 Challenges Data Scientists Face Today
What are the challenges data scientists encounter today? The five covered in this article are the biggest ones that also make the job more interesting.Nathan Rosidi -
Finding Maximum Values in SQL: Aggregation Techniques
MAX() in SQL is a straightforward aggregation method for finding maximum values. Learn here about its syntax and use cases through real interview examples.Nathan Rosidi -