Tag Archives: open source

Wiley’s Predatory Behavior: My Recent Experience and Recommendations

Predatory publishers of scientific journals engage in unethical behavior, so you should steer clear of them. Until now, I had thought Wiley did not behave like them. But a recent incident made me change my mind.

Wiley’s predatory behavior recently with a colleague’s scientific manuscript makes me want to avoid publishing in their journals. Read about our experience.

Pie Chart ggplot Style is Surprisingly Hard! Here’s How I Did it

How do you make a pie chart in ggplot2 package in R? It's not that obvious

Pie chart ggplot style is surprisingly hard to make, mainly because ggplot2 did not give us a circle shape to deal with. But I explain how to get around it in my blog pot.

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.

Variable Names in SAS and R Have Different Restrictions and Rules

You need to come up with names of variables in SAS and in R, but they need to be compatible with both languages if you are running a data warehouse.

Variable names in SAS and R are subject to different “rules and regulations”, and these can be leveraged to your advantage, as I describe in this blog post.

Native Formats in SAS and R for Data Are Different: Here’s How!

Why use particular data formats for different programming languages in statistics? Because the programs can then process the data faster and with more accuracy.

Native formats in SAS and R of data objects have different qualities – and there are reasons behind these differences. Learn about them in this blog post!

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 […]

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