Data Analysis Journal

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A roundup of the most popular not-to-miss conferences, events, and workshops around data and ML this year.
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Should you invest in influence marketing to grow your product? What is the expected ROI? Here’s some math behind.
What are user segmentation techniques? How to locate your Power users? How to do user segmentation analysis in SQL?
How to get the frequency of usage and create a user activity histogram for user engagement analysis in SQL.
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NewCommunity
Introduction and must-know statistical concepts for data analysis and data science
Olga Berezovsky
A recap of 2022 and its best publications, a little gratitude, a lot of confetti, and what’s coming next
Olga Berezovsky
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A short guide to product experimentation steps and process.
Olga Berezovsky
Ways to join and merge datasets in Python Pandas. How to know which method to pick for which use case.
Olga Berezovsky
Some simple and quick ways to apply sampling techniques for your analysis to get random users.
Olga Berezovsky
How to get trustworthy and actionable insights from A/B tests using SQL - a guest post by Chetan Sharma, CEO of Eppo
Chetan Sharma
and
Olga Berezovsky
November recap: case studies, reports, analysis, and tutorials you may have missed
Olga Berezovsky
Great speakers, tasty food, good topics, and a puzzling lack of analysis
Olga Berezovsky
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Data Analysis Journal

Where product, data science, and analytics intersect. Trusted by thousands of analysts and data scientists around the world
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Checklists
A/B Test ChecklistA short guide to product experimentation steps and must-know terminology.
SQL Date-Time CheatsheetA short guide to steps, solution, and must-know terminology
Python Pandas DateTime Reference GuideA short guide to solutions and tips for handling DateTime cases in Python Pandas
Subscription Growth Metrics ChecklistA short guide to steps and must-know terminology
Tutorials
A Selection Of SQL TutorialsA roundup of free SQL tutorials and articles to either get started with or to keep your querying skills strong.
A Selection Of Python Tutorials for AnalystsA roundup of my favorite tutorials for data analysts to either get started with or upkeep existing Python skills

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