Monthly Archives: October 2020

If You Want to Increase Conversions, Try my A/B Testing Course on LinkedIn Learning

Diagram explaining how A/B testing is done

A/B testing seems straightforward, but there are a lot of picky details. What A and B conditions do you actually test? How long do you run the test? How do you calculate the statistics for the test? Answer your questions by taking this LinkedIn Learning course.

Announcing the Publication of my New SAS Book on Data Warehousing

Textbook explaining how to use SAS to program and design a data warehouse

SAS is known for big data and data warehousing, but how do you actually design and build a SAS data warehouse or data lake? What datasets do you include? How do you transform them? How do you serve warehouse users? How do you manage your developers? This book has your answers!

Announcing my New(-ish) Data Curation Course on LinkedIn Learning!

Entity relationship diagram for a Snowflake cloud star schema data warehouse

Data curation is a new term to many people, and many seasoned data scientists are new to it. Data curation involves making diagrams, tables, and other files that help you keep track of, document, and interpret data. Curation files are especially helpful for communicating about data on teams. Learn more about what you’ll learn when […]

Confused when Downloading BRFSS Data? Here is a Guide

Many images of colorful database shapes on a rainbow background

I use the datasets from the Behavioral Risk Factor Surveillance Survey (BRFSS) to demonstrate in a lot of my data science tutorials. The BRFSS are free and available to the public – but they are kind of buried on the web site. This blog post serves as a “map” to help you find them!

Doing Surveys? Try my R Likert Plot Data Hack!

The Likert package in R can visualize categorical data.

I love the Likert package in R, and use it often to visualize data. The problem is that sometimes, I have sparse data, and this can cause problems with the package. This blog post shows you a workaround, and also, a way to format the final plot that I think looks really great!

Fall 2020 Update: Education Mission in the End of Days!

Images of fall leaves on trees on a road in New England

After being hit with the pandemic, I’m racing to catch up with my blog! Here are a few announcements of new courses, new scientific papers, and new ideas on data science!