Roger Peng

16 posts
What is R, what it was, and what it will become

Roger Peng provides a lesson on the roots of R and how it got to where it is now: Chambers was referring to the difficulty in naming and characterizing the S system. Is it a programming language? An environment? A statistical package? Eventually, it seems they settled on “quantitative programming environment”, or in other words, “it’s all the things.” Ironically, for a statistical environment, the first two versions did not...

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Exploring data to form better questions

Feeding off the words of John Tukey, Roger Peng proposes a search for better questions in analysis: The goal in this picture is to get to the upper right corner, where you have a high quality question and very strong evidence. In my experience, most people assume that they are starting in the bottom right corner, where the quality of the question is at its highest. In that case, the...

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Following your gut, following the data

The Wall Street Journal highlighted a disagreement between data and business at Netflix. Ultimately, the business side “won.” However, maybe that’s the wrong framing. Roger Peng describes the differences between analysis and the full truth: There’s no evidence in the reporting that the content team didn’t believe the data or the analysis. It’s just that their fear of damaging a relationship with an actor overruled whatever desire they might have...

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Past and future of data analysis

Roger Peng, a biostatistics professor at John Hopkins University, talks about the past and future of data analysis, using music as a metaphor for the path. Tags: data analysis, Roger Peng

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Past and future of data analysis

Roger Peng, a biostatistics professor at John Hopkins University, talks about the past and future of data analysis, using music as a metaphor for the path. Tags: data analysis, Roger Peng

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