Introduction The right tool should be used for the job. When I started working on my Costco article and visual demographic analysis, I knew that Power BI and Vega would not be the best choice for...

Introduction Few retailers evoke as much loyalty and passion as Costco Wholesale Club. With membership renewal rates between 86% and 93% since beginning to report this information in 2003, some...

Introduction Data Feminism is writen by Catherine D’Ignazio and Lauren Klein. If I were asked what a feminist is prior to reading this book I’d probably say something similar to Merriam-Webster...

Inspiration Around this time last year, I listened to a presentation given by a Washington Post graphics reporter who shared many pieces of wisdom, one that stuck with me was “don’t be a snob, som...

Introduction Fundamentals of Data Visualization by Dr. Claus Wilke is one of those famous technical books from O’Reilly Publishing with a white background and some animal on it. This time it’s ...

Introduction I solved several pain points recently and decided to put them all together in a single file to share and keep for my own future reference, these pain points are: Reverse geocoding...

W.E.B. Du Bois Challenge There have been many great things written about W.E.B. Du Bois by people more eloquent than me. In short though, among many other things, born in 1868 W.E.B. Du Bois was...

Introduction Is data visualization an art form, maybe? Having long seen Edward Tufte’s Visual Display of Quantitative Information appear on must-read lists and getting plugged in Amazon reviews o...

Introduction In this article I discuss “scraping” $80 data, and replicate the SQL Row_Number and LAG functions as well as a recursive CTE in Power Query. Not long ago I saw a great chart from the...

The Download If you just want to download the Power BI file, here it is. This is My First Post! I have thought about starting a data analysis blog for years, and never gotten around to it. Curr...