Category Archives: Data Science

Posts about data science topics.

I Used the R Package EpiCurve to Make an Epidemiologic Curve. Here’s How It Turned Out.

Epidemiologic Curve of 2015 Middle East Respiratory Virus Outbreak Using R EpiCurve Package

With all this talk about “flattening the curve” of the coronavirus, I thought I would get into the weeds about what curve we are talking about when we say that. We are talking about what’s called an epidemiologic curve, or epicurve for short. And to demonstrate what an epicurve is and what it means, I […]

Here is the Statistical Reason why Calculating the Coronavirus Mortality Rate is so Difficult

Purple top test tubes held by a hand with purple gloves in a lab

Since the coronavirus (COVID-19) registered on our public health radar as a communicable infectious disease amongst humans, countries try to calculate their coronavirus mortality rate (otherwise known as case fatality rate). As a result, many different mortality rates have been reported, causing confusion. This article from Business Insider reports country-wide mortality rates that range from […]

VP at Data Robot Tells Cautionary Tale of Data Science, AI, and Healthcare

Ice cream cone fallen upside down on a sidewalk.

I encourage those of you into data science and AI to sign up to receive digests from Data Science Central. I happened upon this web site when looking for some references for a book I am writing, and found some amazing articles. Since I’m into data science in and AI in healthcare, I was intrigued […]

I Installed the Free “SAS University Edition” and Here’s What I Recommend: Part 2

Install Free SAS in 4 steps Install Free SAS University Edition

In Part 1, I introduced you to the old way of installing PC SAS, and pointed out that I hoped that installing free SAS University Edition will go better. Well, here’s some sunshine: it actually is better than the olden days. In the olden days, here were the steps for installing PC SAS: Get enrolled […]

I Installed the Free “SAS University Edition” and Here’s What I Recommend: Part 4

Use SAS free university edition on your own laptop for free banner

This blog post is part of my series on how to get up and running with free SAS University Edition. SAS says there are four steps to doing this, but each step is pretty complicated. The previous post in the series covers the first two steps, and this post covers the third and fourth step. […]

I Installed the Free “SAS University Edition” and Here’s What I Recommend: Part 1

Download SAS for Free Banner Install Free SAS University Edition

A few years ago, I spoke at the Women in Data Science conference, as I mentioned in a LinkedIn article I wrote about how students are rejecting SAS and instead focusing on R and Python. At that conference, one of the students asked a good question: “If you want us to learn SAS, that’s fine, […]

I Installed the Free “SAS University Edition” and Here’s What I Recommend: Part 3

Install Free SAS University Edition Set up your computer to use SAS for free

Step 1: Set Up in Preparation for Free SAS University Edition I have Windows, and I use OneDrive for my files. There were two things for the set up: downloading VMware (because I guess this is a “virtual” version of SAS), and creating directories named particular names that SAS will use for the install. They […]

Which Independent Variables Belong in a Regression Equation? We Don’t All Agree, But Here’s What I Do.

Little table of X Y Pairs with a Regresion Diagram with Least Squares Line

During my failed attempt to get a PhD from the University of South Florida, my doctor friend asked me one day to build a linear regression model using a small dataset he had collected from a lab. He had measurements of these “new” chemical messengers called cytokines – so that definitely dates this story! I […]

Unsupervised Algorithms are like Unsupervised Kids: Be Careful, or They will Drag You Into the Headlines!

Victorian drawing of several unsupervised children starting a bonfire

Someone should have told that to this Chinese dad before his toddler jumped in their SUV and drove around looking for him until he had an accident! And precocious kid and dad are not the only unsupervised things in the news today. Another thing hit all over the morning news drive today in the US: […]