Data Science Educational Resources
StrataScratch is a data science educational platform with over 1,000+ real interview questions from your favorite companies.
Essential Python Libraries for Full-Stack Data Scientists
What Python libraries do you need to know as a beginner full-stack data scientist? Here’s the list you can use to impress your new employer from day one.
Nathan Rosidi -
Commonly Used Statistical Tests in Data Science
A Comprehensive Guide to Essential Statistical Tests and Their Applications.Nathan Rosidi -
SQL ROW_NUMBER() Function: Syntax and Applications
How to add SQL ROW_NUMBER() to your data handling and analysis tools? We’ll help you by explaining its workings, its syntax, and how to use it in examples.Nathan Rosidi -
Understanding the Pandas diff() Function: A Guide for Data Analysts
This guide explores the Pandas diff() function, detailing its utility in data trend analysis and predictive modeling with practical examples.Nathan Rosidi -
MS SQL vs MySQL: Similarities and Differences
Facing the choice of MS SQL vs MySQL? Here’s a guide through the similarities and differences of these two popular database systems.Nathan Rosidi -
Understanding SQL's INTERSECT Command
What is INTERSECT in SQL? How does it work? When to use it? How to write an INTERSECT query? You can find all these questions answered in this article.Nathan Rosidi -
NumPy Concatenate(): Efficient Array Manipulation in Python
Mastering advanced techniques in data manipulation with NumPy through comprehensive understanding and application of array concatenation methods.Nathan Rosidi -
Data Science in 2024 - What Has Changed
What has changed in the data science landscape, and what are the challenges of the 2024 data science job market?Nathan Rosidi -
Chi-Square Test in Python: A Technical Guide
Exploring Categorical Variables in Education Through Python's Chi-Square Test.Nathan Rosidi -
An In-Depth Guide to SQL SELECT DISTINCT Statement
SQL SELECT DISTINCT is a powerful statement for removing duplicates from your data. Learn how to use it in different scenarios and what its alternatives are.Nathan Rosidi -
Best Platforms to Practice SQL Online in 2026: A Comprehensive Review
All 10 SQL practice platforms we tested against 16 criteria achieve their goal: they will teach you SQL. Find out which ones suit your learning goals.
Tihomir Babic -
Performing Anova in Python for Precision Agriculture
Exploring agricultural insights with Anova in Python using the Kaggle crop recommendation dataset.Nathan Rosidi -