Data Analysis Journal

Home
Product Analysis
A/B testing
What experts say
SQL
Python
Machine Learning
Archive
About
A quick lookup one-pager for common DATE functions in SQL
An analysis to find the right threshold of the most impactful frequency of user communication
What are user segmentation techniques? How to locate your Power users? How to do user segmentation analysis in SQL?
A framework of product experimentation - the procedure and analysis.

Most popular

3
2
See all popular
NewCommunity
My favorite blogs and newsletters to read about data and product analysis, data science, and data engineering.
7
How to apply CASE conditional expressions to specify a result when there are multiple conditions.
Using machine learning to solve common challenges in product and data analytics. How to figure out which model to use for which business case.
3
A practical guide on how to locate and measure a tricky product persona of adjacent users in SQL, and challenges of getting such analysis in product…
A roundup of the most popular not-to-miss conferences, events, and workshops around data and ML this year.
2
Should you invest in influence marketing to grow your product? What is the expected ROI? Here’s some math behind.
How to get the frequency of usage and create a user activity histogram for user engagement analysis in SQL.
2
Introduction and must-know statistical concepts for data analysis and data science
See all

Most popular

3
2
See all popular

Data Analysis Journal

Where product, data science, and analytics intersect. Trusted by thousands of analysts and data scientists around the world
RecommendationsView all 9
Michael’s Newsletter
Michael’s Newsletter
Michael Lin
Data Engineering Central
Data Engineering Central
Daniel Beach
data beats
data beats
Arpit Choudhury
L
Learn Analytics Engineering
Madison Mae
Pedram's Data Based
Pedram's Data Based
Pedram Navid
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

Data Analysis Journal

AboutArchiveRecommendationsSitemap
© 2023 Olga Berezovsky
Privacy ∙ Terms ∙ Collection notice
Start WritingGet the app
Substack is the home for great writing