Author Archives: Roger Peng

Dear Laboratory Scientists: Welcome to My World

Consider the following question: Is there a reproducibility/replication crisis in epidemiology? I think there are only two possible ways to answer that question: No, there is no replication crisis in epidemiology because no one ever believes the result of an … Continue reading

Posted in Uncategorized | 2 Comments

Unbundling the educational package

I just got back from the World Economic Forum's summer meeting in Tianjin, China and there was much talk of disruption and innovation there. Basically, if you weren't disrupting, you were furniture. Perhaps not surprisingly, one topic area that was … Continue reading

Posted in Uncategorized | 3 Comments

Introducing people to R: 14 years and counting

I've been introducing people to R for quite a long time now and I've been doing some reflecting today on how that process has changed quite a bit over time. I first started using R around 1998--1999 I think I … Continue reading

Posted in Uncategorized | 7 Comments

Jan de Leeuw owns the Internet

One of the best things to happen on the Internet recently is that Jan de Leeuw has decided to own the Twitter/Facebook universe. If you do not already, you should be following him. Among his many accomplishments, he founded the … Continue reading

Posted in Uncategorized | 1 Comment

New book on implementing reproducible research

I have mentioned this in a few places but my book edited with Victoria Stodden and Fritz Leisch,¬†Implementing Reproducible Research, has just been published by CRC Press. Although it is technically in their "R Series", the chapters contain information on … Continue reading

Posted in Uncategorized | 1 Comment

The Real Reason Reproducible Research is Important

Reproducible research has been on my mind a bit these days, partly because it has been in the news with the Piketty stuff, and also perhaps because I just published a book on it and I'm teaching a class on … Continue reading

Posted in Uncategorized | 11 Comments

Post-Piketty Lessons

The latest crisis in data analysis comes to us (once again) from the field of Economics. Thomas Piketty, a French economist recently published a book titled Capital in the 21st Century that has been a best-seller. I have not read … Continue reading

Posted in Uncategorized | 6 Comments

JHU Data Science: More is More

Today Jeff Leek, Brian Caffo, and I are launching 3 new courses on Coursera as part of the Johns Hopkins Data Science Specialization. These courses are Exploratory Data Analysis Reproducible Research Statistical Inference I'm particularly excited about Reproducible Research, not … Continue reading

Posted in Uncategorized | Leave a comment

This is how an important scientific debate is being used to stop EPA regulation

Environmental regulation in the United States has protected human health for over 40 years. Since the Clean Air Act was enacted in 1970, levels of outdoor air pollution have dropped dramatically, changing the landscape of once heavily-polluted cities like Los … Continue reading

Posted in Uncategorized | 4 Comments

ENAR is in Baltimore - Here's What To Do

This year's meeting of the Eastern North American Region of the International Biometric Society (ENAR) is in lovely Baltimore, Maryland. As local residents Jeff and I thought we'd put down a few suggestions for what to do during your stay … Continue reading

Posted in Uncategorized | Leave a comment