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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
yan-holtz.com
Joined February 2016
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21.9K
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    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
    Dec 21, 2022
    💡A boxplot can hide information. Show it with a violin plot instead? (Trying to visually explain this 😛)
    GIF
    587K
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    Yan Holtz
    @R_Graph_Gallery
    Oct 16, 2024
    Beginner or Advanced R User? 🤔 ➡️ This cheat sheet is gold. It summarizes all the best practices R developers should apply. If some of it isn’t familiar, the first module of my productive-r-workflow.com project explains exactly this! Thanks so much @_wurli 🙏 What's missing?
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    Yan Holtz
    @R_Graph_Gallery
    Jan 3, 2023
    👋Are you interested in #dataviz? ⭐️I created 8 free online projects on the topic!😀 Please let me introduce them: 🧵..
    A classification of chart types based on input data format
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    Yan Holtz
    @R_Graph_Gallery
    May 11, 2022
    👋 I've made a new #dataviz related website! 😀 It's called☀️dataviz-inspiration.com: a list of many stunning Viz projects I love💜 🧵
    dataviz-inspiration.com lists hundreds of chart examples
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    Yan Holtz
    @R_Graph_Gallery
    Jan 16, 2025
    🚨 Stop chasing the p-value! Increasing your sample size will always yield a significant result. Even for trivial differences. 🎮 I created a little interactive playground to illustrate this issue: react-graph-gallery.com/example/t-test… Always pair p-values with effect sizes!
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    Yan Holtz
    @R_Graph_Gallery
    Jun 17, 2024
    🔥 Finally! Just launched the R color palette finder 🚀 🎨 Explore 2500+ palettes, see them in action, get the ggplot2 code. ➡️ r-graph-gallery.com/color-palette-… 🙏 @joseph_barbier and @Emil_Hvitfeldt for the paletteer package! Useful? Bug? Feature request? Let me know!
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    Yan Holtz
    @R_Graph_Gallery
    Mar 8, 2021
    👋 After a loooong break (🏚️👶), I'm back on my side projects with a brand new version of the Python Graph Gallery! 🧵 python-graph-gallery.com
    The Python Graph Gallery Preview
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    Yan Holtz
    @R_Graph_Gallery
    Jul 9, 2018
    🍾 I'm glad to announce a new #dataviz project: --> data-to-viz.com A classification of chart types based on data input format. Includes a lot of #rstat code, a poster for @useR2018_conf , a gallery of caveats, and plenty of tips and tricks!
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    Yan Holtz
    @R_Graph_Gallery
    Aug 11, 2019
    ⭐️⭐️ Glad to announce a massive update of the #rstats Graph Gallery !! ⭐️⭐️ Now built with R Markdown ⭐️ 50+ new charts ⭐️ Hosted on GitHub ⭐️ ggplot2 focus ⭐️ loading time divided / 10 ⭐️ <- friendly ⭐️ And more! r-graph-gallery.com
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    Yan Holtz
    @R_Graph_Gallery
    Jan 4, 2023
    My beginner/intermediate #Rstats friends often ask me for tips. ➡️Here is the 'dream pipeline' I use for my data analysis, ending with a clean, interactive, online report: 🧵..
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    Yan Holtz
    @R_Graph_Gallery
    Apr 15, 2019
    I just taught a 2 days course on #dataviz with #rstat. I share the course material in case it can help somebody: yan-holtz.com/teaching Included: DataViz intro & caveats, ggplot2, R Markdown, and Github intro
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    Yan Holtz
    @R_Graph_Gallery
    Jan 9, 2025
    🚨 R² isn't what it seems! I see many ppl blindly trusting it, while it can be misleading. I just made a scatterplot where you can drag circles and see the r2: react-graph-gallery.com/example/scatte… It can help getting a better intuition!
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    Yan Holtz
    @R_Graph_Gallery
    Jun 10, 2024
    Looking for the best color palette? 😔 Check the tool we just created with @joseph_barbier: 🎨 2500+ palettes 🐍 Python Library to get them 🔍 Easy-to-use application to find your perfect match python-graph-gallery.com/color-palette-… Feedback welcome, we're working hard on this right now!
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