Cohort Analysis: How to Measure Customer Retention and Make Better Decisions
Cohort analysis groups customers by when they started (for example, the month of their first purchase or sign-up) and tracks how each group behaves…
Read article
Author Profile
Pius Imwene
Pius Imwene is a Data Analyst, Data Scientist, and analytics consultant specializing in data analysis, business intelligence, dashboards, data cleaning, predictive analytics, machine learning, and statistical reporting. Through Data Science Consulting Pro, he helps businesses, researchers, startups, and organizations turn raw data into clear reports, reliable dashboards, accurate forecasts, and decision-ready insights.He writes practical content on data science, AI, machine learning, analytics, dashboards, and business intelligence, helping readers understand complex data topics and make smarter, evidence-based decisions.
Published Work
Articles by Pius Imwene
Time Series Forecasting in Python: A Practical Guide to ARIMA and Prophet
Time series forecasting in Python means using past observations, recorded at regular intervals, to predict future values with a quantified range of uncertainty. The…
Read article
RFM Analysis Explained: How to Segment Customers by Recency, Frequency and Monetary Value
By Pius Imwene, Data Analyst and Data Science Consultant at Data Science Consulting Pro | Last updated: October 2026 Here is RFM analysis explained…
Read article
Unsupervised Machine Learning: Algorithms, Examples, Techniques and Business Applications
Unsupervised machine learning is a branch of machine learning that finds structure in data that has no predefined labels or target outcomes. Instead of…
Read article
What Is Data Observability? Benefits, Pillars, Metrics, and Examples
A company’s executive sales dashboard opens normally at 8:00 AM. The charts load, the database is online, and the pipeline reports a successful run.…
Read article
Data Lake vs Data Warehouse vs Lakehouse: Which Is Right for Your Business?
A mid-sized company has dashboards built on top of warehouse tables, years of raw customer logs sitting untouched in object storage, a new machine…
Read article
How to Create a Dashboard in Tableau: Step-by-Step Guide
By Pius Imwene, Data Analyst and Analytics Consultant at DataScienceConsultingPro.com. Published 22 August 2026. Most people arrive at Tableau with a folder of spreadsheets…
Read article
Classification and Regression Tree (CART): A Practical Guide
A bank approving loans, a telecom flagging churn risk, a hospital predicting readmissions: none of these can ship a prediction alone. Someone has to…
Read article
Data Mesh vs Data Fabric
Data Mesh vs Data Fabric: Differences, Costs & Uses Reviewed and updated: July 2026 Most organizations don’t struggle to store data anymore. They struggle…
Read article
ETL vs ELT: How to Pick the Right Data Pipeline (and Avoid the Mistake Most Teams Make)
By Pius Imwene · Data Engineering · Updated July 2026 · 14 min read Your sales dashboard says $1.2 million in revenue. Accounting says…
Read article