R-bloggers

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On May 11th 2026, Professor Frank Harrell with lead a workshop, Introduction to R, Regression, and the rms Package, covering foundational R and RStudio skills, linear and multiple regression concepts, and an introduction to the rms package for model fitting and diagnostics. It also introduces a reproducible workflow using Quarto, with ... [Read more...]

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{talib} is a new R package built on TA-Lib, which is now available on CRAN. The R-package is targeted at individuals and, perhaps, institutions who, in some form or the other, interacts with the financial markets using technical analysis. The library is built with minimal dependencies for long-term stability and ... [Read more...]

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Zhenguo Zhang's Blog https://fortune9.netlify.app/2026/04/26/single-vs-double-quotes-in-command-line-and-r/ -When feeding a program with command line arguments, single quotes and double quotes make a significant difference. The Shell Rule Single quotes (') do not allow escaping any characters; the contents are treated literally. Double quotes ("), however, allow for character escaping and ... [Read more...]

Zhenguo Zhang's Blog /2026/04/26/single-vs-double-quotes-in-command-line-and-r/ -When feeding a program with command line arguments, single quotes and double quotes make a significant difference. The Shell Rule Single quotes (') do not allow escaping any characters; the contents are treated literally. Double quotes ("), however, allow for character escaping and variable expansion. You can ... [Read more...]

Pie charts are bad, as any fule kno. We’re not as good at judging relative differences between angles and areas as we are at judging relative differences in lengths on a common baseline. This is especially true when we have more than two things to compare at the same ... [Read more...]

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I’m not mad when current AI tools or tips1 make Git look cool and important. Something old and stable to cling to! 🤗 In particular, it’s now trendy to have agents work on different tickets in the same project in parallel by using Git worktr... [Read more...]

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The five boroughs of New York City can be informally or formally carved up into many different pieces, depending on what it is that you’re doing. As part of an ongoing project, I recently made an R package, nycmaps, that lets you draw maps of som... [Read more...]

This course is for researchers who analyze field observations. These data are often inconsistent because sampling protocols can change across projects, over time, or when older data are combined with new recordings. [Read more...]

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Zhenguo Zhang's Blog https://fortune9.netlify.app/2026/04/18/r-how-to-modify-the-theme-used-by-blogdown/ -My website is built using blogdown and published on Netlify via CI/CD. Recently, I updated my Hugo version from 0.92 to 0.154.2. Unfortunately, th... [Read more...]