Category: Tutorials
Conversion math without magic
Conversion looks simple until eligible, success, and the time window disagree. Part 2 of Customer analytics basics shows rate math, denominators, attribution windows, and toy numbers you can…
Warehouses vs lakes vs just a database
App database, warehouse, or lake? Walk a plain decision tree for where data should live so product traffic, cheap history, and certified analytics stop fighting over one system.…
I want help coding or building software
You want help coding or building software. This part separates a chat-window snippet from Claude Code, ChatGPT Codex, Gemini CLI / Antigravity, and Grok Build, and it tells…
Power BI starter: measures that match the question
Measures answer questions. Columns just sit there. This part shows how to write DAX that matches the business question, fix filter context mistakes, and test a measure before…
Peeking, guardrails, and stopping rules
Peeking at p-values every morning wrecks the experiment you thought you ran carefully. Part 2 of Experimentation culture covers guardrails, fixed horizons, sequential plans, and stopping rules that…
