Yan Holtz (@R_Graph_Gallery) / X

Yan Holtz

1,868 posts

Yan Holtz

@R_Graph_Gallery

Software engineer who ❤️ #dataviz. Creator of data-to-viz.com and the R, Python, D3 and React graph galleries. ➡️ productive-r-workflow.com 📈 🌊 🍺

Montpellier, France

Joined February 2016

Pinned
Yan Holtz
@R_Graph_Gallery
Mar 18, 2024
😅 Finally! 🍾 ➡️ 6 months of work later, I'm launching my productive-r-workflow.com project! ❤️ If you're using #Rstats for data analysis, you will very likely enjoy it! 🙏 Thanks so much to the 200+ early adopters! ⏰ Pre-launch price available until the end of the day
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Yan Holtz
@R_Graph_Gallery
Feb 10
I'm launching a new project! 🍾🎉 A course that teaches how to build #dataviz on the web with D3.js & React. Now that AI is here, those tools are finally accessible to create stunning interactive charts. A few days left to join d3-loves-react.com!
react-graph-gallery.com
D3 ❤️ React | The best way to learn d3.js
Master D3.js with React. Learn to build interactive, custom data visualizations from scratch.
Yan Holtz
@R_Graph_Gallery
Nov 25, 2025
I spent 2 years building this. I left my job to teach programming and dataviz, and now 4 projects are finally live: 1️⃣ productive-r-workflow.com 2️⃣ matplotlib-journey.com 3️⃣ ggplot2-uncharted.com 4️⃣ prtfol.com They’re all 50 percent off until Sunday! 😀
GIF
Yan Holtz
@R_Graph_Gallery
Oct 15, 2025
I just released prtfol.com ➡️ a tool to build a good looking portfolio in a few minutes! If your work is more or less related with #data, I think you'll like it!
Yan Holtz
@R_Graph_Gallery
Sep 29, 2025
@matplotlib is confusing. But it gets much better once you understand that only the "Axes" interface is useful. Get rid of the "Pyplot" interface and you just divided the complexity by 2! Matplotlib-journey.com