Tag Archives: software tutorial

Adding Error Bars to ggplot2 Plots Can be Made Easy Through Dataframe Structure

Error bars on plots can provide the audience an estimate of the amount of certainty you have with your estimates.

Adding error bars to ggplot2 in R plots is easiest if you include the width of the error bar as a variable in your plot data. Read my blog post to see an example.

GPower Case Example Shows How to Calculate and Document Sample Size

This case example shows a use case where we estimated sample size in GPower under different conditions.

GPower case example shows a use-case where we needed to select an outcome measure for our study, then do a power calculation for sample size required under different outcome effect size scenarios. My blog post shows what I did, and how I documented/curated the results.

Querying the GHDx Database: Demonstration and Review of Application

Many data scientists interested in health are looking to query the Global Burden of Disease database, also known as the GHDx

Querying the GHDx database is challenging because of its difficult user interface, but mastering it will allow you to access country-level health data for comparisons! See my demonstration!

SAS-R Integration Example: Transform in R, Analyze in SAS!

You can use SAS and R together in one project. I show you how to develop an analytic dataset in R and put it in SAS ODA for analysis.

Looking for a SAS-R integration example that uses the best of both worlds? I show you a use-case where I was in a hurry, and did transformation in R with the analysis in SAS!

SAS Macros for Beginners: Learn the Basics with my Tutorial Videos!

If you are new to SAS, you will want to learn about macros. I make video tutorials and have written a book about data warehousing to help learners grasp automation in SAS.

Want to get started learning about SAS macros? This blog post provides SAS macros for beginners with video tutorials to walk beginners and code newbies through the basic steps!

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

SAS University Edition is free! That means anyone can download and use it! However, it’s not so straightforward. The download page itself is long and confusing. Read Part 1 of my four-part blog post that walks you through downloading and installing free SAS University Edition!