Data Science Educational Resources
StrataScratch is a data science educational platform with over 1,000+ real interview questions from your favorite companies.
R Articles, Tutorials & Interview Questions
How to Conduct a T-Test in R for Data Analysis
Learn to run t-tests in R: check assumptions, interpret statistical results, and apply insights effectively to real-world data analysis projects.
Nathan Rosidi -
Best Practices for R Continuous Integration
Implementing Continuous Integration in R: Automate Tests, Detect Errors Early, and Keep Your Analysis ConsistentNathan Rosidi -
Implementing a Logit Model in R Effectively
How to build and interpret a logit model in R to predict customer churn: data preparation, modeling, and evaluationNathan Rosidi -
Creating R Programming Histogram for Data Visualization
Step-by-step guide to creating, customizing, and interpreting R programming histograms using real student performance dataNathan Rosidi -
Using Principal Component Analysis in R for Real-World Data
A hands-on guide to using PCA in R with DoorDash data—cleaning, visualising, and modelling compressed dimensions that actually make sense.Nathan Rosidi -
T-Test or Z-Test for R: Which Should You Use?
T-test vs. Z-test in crime data analysis: A comprehensive guide to choosing the right statistical method for comparing crime trends, means, and proportionsNathan Rosidi -