In-depth Guides

Mastering PySpark Joins: Learn the Logic, Avoid the Traps

Master Inner, Left, and Complex Joins in PySpark with Real Interview Questions

Machine Learning Modeling: Essential Techniques, Tools, and Examples

Machine learning modeling is intimidating for beginners. Here, we’ll make it less complicated and guide you through essential modeling techniques.

Looping Through Lists in Python

Go beyond basic examples and explore how looping through lists in Python helps solve real data challenges.

T-Test or Z-Test for Python: Which Should You Use?

Statistical thinking is more than just math - it’s a decision-making toolkit.

SQL Data Manipulation for Data Scientists

9 practical modules in SQL from advanced data transformations to financial reporting particularities for starting your career in data science

Python Data Manipulation for Data Scientists

9 practical modules in Python from advanced data transformations to financial reporting particularities for starting your career in data science!

SQL Time&Date Manipulation for Data Scientists

8 practical modules in SQL from time arithmetics to time series analysis for starting your career in data science

Python Time&Date Manipulation for Data Scientists

8 practical modules in Python from time arithmetics to time series analysis for starting your career in data science