Data Analysis Journal | Olga Berezovsky | Substack

Python

Interview questions, examples, guides

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How to read and run correlation plots in Python Pandas

Olga Berezovsky

Mar 10, 2021

What is better for data cleaning - SQL or Python? How to use them for data transformation, analysis, and refactoring.

Olga Berezovsky

Mar 2

A roundup of my favorite tutorials for data analysts to either get started with or upkeep existing Python skills

Olga Berezovsky

Sep 15, 2021

A case study challenge for a senior analyst position at one of the biggest Bay Area companies completed in Python

Olga Berezovsky

Sep 1, 2021

How to approach conversion rates for multiple currencies in SQL for revenue reporting

Olga Berezovsky

Jul 21, 2021

How to get started with Python basics and its environments for data science and analysis

Olga Berezovsky

Jul 14, 2021

Some common Python interview questions for hiring data analysts and data scientists

Olga Berezovsky

May 19, 2021

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