Data Analysis Journal

From Forecast to Action - Issue 279

Why communicating, packaging, and embedding forecasts is where most data scientists fail.

Sep 3 • Olga Berezovsky

2

May 2025

From Analytics to Data Science: Building Forecasts - Issue 257

A step-by-step guide to ARIMA and Prophet to forecast events, transactions, and customer growth.

May 7 • Olga Berezovsky

19

1

1

March 2025

Forecasting in Analytics: Choosing the Right Approach - Issue 249

How to predict revenue, user growth, and key business metrics using moving averages, regression, and ML

Mar 12 • Olga Berezovsky

25

2

December 2024

Refresher on Statistics - Issue 237

Key statistical concepts often used in data analytics.

Dec 18, 2024 • Olga Berezovsky

19

October 2024

When and Why You Need Randomly Distributed Users - Issue 226

Statistics 101 or Intro to Random Sampling: Simple and advanced techniques for applying sampling methods for your analysis.

Oct 9, 2024 • Olga Berezovsky

6

2

September 2024

Applying Regressions in Analytics - Issue 221

How to interpret regression plots and understand the equation that drives analysis and predictions

Sep 11, 2024 • Olga Berezovsky

6

August 2024

Handling Missing Data: Should You Drop or Impute? - Issue 219

Exploratory Data Analysis: Techniques for handling NULL values in modeling and analysis

Aug 28, 2024 • Olga Berezovsky

6

Predicting LTV with ML - Issue 217

ML models for predicting LTV in freemium apps: research and case studies

Aug 14, 2024 • Olga Berezovsky

4

April 2024

Outliers: To Drop or Not to Drop? - Issue 196

From Analytics to ML: How to detect outliers and what to do with them.

Apr 10, 2024 • Olga Berezovsky

9

1

March 2024

Data Portfolio Done In Notebook - Issue 191

How to use notebooks as your portfolio to showcase your skills, and why notebooks are great for analytics.

Mar 6, 2024 • Olga Berezovsky

5

February 2024

How To Measure Data Quality - Issue 185

Does data quality have ROI? Ways to measure and quantify data governance metrics

Feb 7, 2024 • Olga Berezovsky

31

5

1

November 2023

When To Use Mean Or Median - Issue 171

Working with descriptive statistics: how to know when to use Mean or Median in your reporting

Nov 8, 2023 • Olga Berezovsky

9