Category: Analytics
This shelf is the job, not a tool manual. You are here if someone expects a number, a chart, or a “what should we do,” and the spreadsheet is starting to argue with itself. The articles cover the question before the query, a metric with a written definition, a chart that answers something, data that is fit to ship, and the messy middle of pipelines and stewardship.
It is not the SQL category. SQL is how you ask a table. Analytics is what you are trying to decide, and whether the number is even the right one. It is not the AI category either. A model can draft the email about the metric. It does not pick the metric.
Where to start: Analytics foundations if you do not yet have a clear question. Metrics if the team is arguing about a definition. Charts if the picture is pretty and the decision is still fuzzy. The SQL series when you are ready to ask the table yourself. Learn groups these as a track so you do not have to guess an order from a flat list.
Power BI for beginners: how to write measures that answer your question
Name Power BI measures after the question, write DAX that respects filter context, and test before the card goes live. Columns are raw material; measures are answers.
When to look at A/B test results and when to stop the test
Stop peeking at interim p-values as final decisions. Use fixed horizons or sequential plans, guardrail metrics, and a written stopping rule before launch.
How to compare customer groups without fooling yourself
Compare groups with an apples-to-apples checklist: mix, baseline, and window. Mix shifts fool more roadmaps than bad SQL.
Batch vs streaming in plain English
Real time is a latency budget, not a vibe. Learn batch, streaming, and micro-batch in plain English so you know when yesterday is fine, when minutes matter, and…
How chart axes and baselines can make the same numbers tell different stories
Axes decide whether a chart is honest. Learn baselines, truncated scales, dual-axis traps, and when a log scale helps so small differences stop looking like emergencies in the…




