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David Rach

@davidrach.bsky.social
431 followers 413 following 111 posts

Immunology PhD student @UMBaltimore. Views are my own. Favorite rabbit holes include #flowcytometry #rstats #bioconductor, with dashes of #coffee #kayaking #birding #ultrunning #languages. RPCV Ghana 16->18, TCK Mexico 96->11 github.com/DavidRach

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Reposted by David Rach
Erik van Nimwegen @erikvannimwegen.bsky.social · 21/08/2026
Remember this? bsky.app/profile/did:... Rigorous visualization of the structure in your high-dimensional data. Fantastic work by @dhdegroot.bsky.social With help of the reviewers of Nat Biotech it is now updated, extended an officially published here: www.nature.com/articles/s41... 1/n
nature.com
Bonsai reconstructs tree representations for distortion-free visualization and exploration of high-dimensional data - Nature Biotechnology
High-dimensional data are visualized through representation on tree structures.
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Stevie Ped @smped.bsky.social · 19/08/2026
Reminder for all members of the Bioconductor community. Nominations close at the end of the month. If you're unsure, please reach out on the Bioc chat or through your networks
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MetroFlow @metroflowcyto.bsky.social · 30/06/2026
#Metroflow2026 registration is open and for the first time we are hosting our annual meeting at Wiley, publisher of Cytometry Part A, Cytometry Part B, and Current Protocols of Cytometry. Find us at Eventbrite or in the URL below for more details! tinyurl.com/MetroFlow2026 #flowcytometry #flowcyto
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International Society for Advancement of Cytometry @isacytometry.bsky.social · 29/06/2026
We’re excited to announce the dates and location for CYTO 2028! 🎉 Save the date and stay tuned for more details as we continue building future opportunities for discovery, collaboration, and innovation within the cytometry community. CYTO 2028 June 24-28, 2028 Calgary, Alberta, Canada
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David Rach @davidrach.bsky.social · 18/06/2026
Ph.Done! youtu.be/h_G-UR-BmS4?...
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David Rach @davidrach.bsky.social · 11/06/2026
One week to go, everyone is still invited 😇😂 www.youtube.com/live/K7iae7I... #rstats #flowcytometry #bioconductor
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bioRxiv Bioinfo @biorxiv-bioinfo.bsky.social · 05/06/2026
A Reproducible and Extensible Benchmark of Supervised Cell Type Annotation Tools for Cytometry Data www.biorxiv.org/content/10.64898/20…
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David Rach @davidrach.bsky.social · 04/06/2026
Going to #CYTO2026? Same! If you don't see me in the coffee line, and are looking to add to your laptop's hex sticker collection (or just want to give me general grief 🤓), you can track me down at the following 1/n #rstats #CytometryInR #flowcytometry #Bioconductor
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Bioconductor @bioconductor.bsky.social · 06/05/2026
📅 Schedule information for BioC2026 is now available on the BioC2026 website. Registration is also officially open for the conference and the post-conference Carpentries workshop and hackathon. Early bird pricing ends on 15 June 2026. 🎟️ More details and registration: bioc2026.bioconductor.org
bioc2026.bioconductor.org
Bioconductor
Join/follow our community
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bioRxiv Cell Biology @biorxiv-cellbio.bsky.social · 21/04/2026
FlowWeb, a free, web-based platform for flow cytometry data analysis www.biorxiv.org/content/10.64898/20…
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International Society for Advancement of Cytometry @isacytometry.bsky.social · 10/04/2026
Late-Breaking Poster submissions close MONDAY! If you have new, high-impact data, now’s the time to share it with the global cytometry community. Don't miss the chance to be part of the conference experience. Submission deadline: Monday, April 13 www.cytoconference.org/abstracts"
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Libby Heeren @libbyheeren.bsky.social · 20/03/2026
Also, using the UI is the MOST SUCCESSFUL WAY I've ever been able to stash and pop changes. It's so niiiiice! Heres a fun game: count how many times I mention git making me cry (in the past) in this video 😂 #positron #databs #GitHub #Git #rstats #pydata
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Dirk Eddelbuettel @eddelbuettel.com · 01/03/2026
#r2u had its first 'three point five million packages delivered' month in Februaru (outside that two-day Sep 2023 outlier) bringing the total to over 68 million #CRAN #Rstats packages shipped as #Ubuntu .deb binaries. #r2u. Fast. Easy. Reliable. Pick All Three.
Dual-figure chart with #r2u cumulative donwload in mullion on the left, hitting 68 millions, and average weekly download (on a log scale) coming up on 100lk/week as we hit 3.49 million in the short month of February.
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Waggoner Lab @labwaggoner.bsky.social · 28/02/2026
FlowCLOc, a New Tool for Selecting the Most Appropriate Antibodies in Flow Cytometry www.mdpi.com/1422-0067/27...
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David Rach @davidrach.bsky.social · 21/02/2026
Hello #rstats folks, can anyone point me towards a good resource on how to set up/retrieve existing Google analytics account data and bring it into R? Not my usual #rstats niche, currently reading through the GoogleAnalyticsR vignette but post authentication not seeing any accounts or properties.
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Tyler, from the Internet @tylerfromtheinternet.com · 12/11/2025
Uh oh, you scrolled too far, too greedily, too deep: you have encountered a balrog.
Balrog roaring while being on fire. He's a big ol fire guy.
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Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 02/02/2026
Wow this scoring chaos seems to be an extreme case of what I say about many ad hoc analyses: no derivation of method from a clear scientific theory, no assessment of statistical properties, and decades pass before someone notices. This happens in biology too, so let’s not pick on psychology only
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David Rach @davidrach.bsky.social · 27/01/2026
Excited to officially announce our free "Cytometry in R" mini-course, aimed at coding beginners, will be starting up the first week of February! 🥳 It will be offered both online and in-person at the University of Maryland, Baltimore. 1500 people have signed up!!! #flowcytometry #rstats #quarto 1/7
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bioRxiv Immunology @biorxiv-immuno.bsky.social · 27/01/2026
Unmixing Spread Estimation Based on Residual Model in Spectral Flow Cytometry www.biorxiv.org/content/10.64898/20…
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Hadley Wickham @hadley.nz · 14/01/2026
(It also (optionally) plays a gong sound 🤣)
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Solomon Kurz @solomonkurz.bsky.social · 14/01/2026
The 0.5.0 version of my {brms} + {tidyverse} translation of McElreath's "Statistical Rethinking" (2nd ed) is up! solomon.quarto.pub/sr2/ 1/3 #rstats
solomon.quarto.pub
Statistical rethinking 2 with rstan and the tidyverse
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International Society for Advancement of Cytometry @isacytometry.bsky.social · 30/12/2025
At CYTO, it’s the people who make the experience unforgettable. Colleagues become friends, mentorships take shape, and a community comes together around a shared passion for cytometry.
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International Society for Advancement of Cytometry @isacytometry.bsky.social · 15/12/2025
The CYTO 2026 abstract deadline is TODAY. This is your last chance to show off your research and join the global cytometry wave in West Palm Beach! Submission deadline: December 15th at 11:59pm ET. Submit today: www.cytoconference.org/abstracts.html
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International Society for Advancement of Cytometry @isacytometry.bsky.social · 12/12/2025
Our English and Mandarin versions of our Basics of Flow Cytometry E-Course are now available free on YouTube! Check it out and make sure you like and subscribe to stay updated as we release additional educational content along with this course in additional languages! youtube.com/playlist?lis...
youtube.com
Basics of Flow Cytometry E-Course - YouTube
This playlist includes our Basics of Flow Cytometry E-Course in various languages. For more content like this, please visit our website at https://learning.i...
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VIB Technologies @vibtechnologies.bsky.social · 11/12/2025
Next May, the Computational Cytometry Summer School returns to Ghent for its 3rd edition. Sofie Van Gassen explains what participants can expect from this intensive hands-on program. tinyurl.com/msmzk74f Apply before 16 December 2025 ⚠️
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Rafael Irizarry @rafalab.bsky.social · 01/12/2025
📢 We are taking applications for our Postdoctoral Fellows Program at Harvard/DFCI! 🔹Join a research group in our department 🔹Co-mentoring opportunities with 2+ faculty 🔹Collaborate with investigators beyond our department 🔹Salary starts at $75K Apply here: t.co/B7SLZzQFKu
t.co
https://ds.dfci.harvard.edu/postdocs/
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Charlotte Hadley (she/her) @lottiemorecharlie.bsky.social · 01/12/2025
Merry December folks! Wanna know your most used and co-dependent geoms this past year?! I've built "Spotify Wrapped" for {ggplot2} that produces you an interactive story and analytical tools for your geom usage! #rstats Build your own report by following the docs: gpcds.com/ggplot2wrapp...
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David Rach @davidrach.bsky.social · 17/11/2025
Bought my laptop back in 2020, and #plannedobsolescence be dammed, I will use it until it disintegrates. Just swapped out the dying battery, and not worrying about finding the charger after 10 minutes unplugged is nice! Similar story for last years RAM upgrades and #Linux dual-boot.
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bioRxiv Immunology @biorxiv-immuno.bsky.social · 17/11/2025
Autofluorescence imaging reveals the impact of cryopreservation on T cell metabolism and activation response www.biorxiv.org/content/10.1101/202…
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Emily Young @eayoung.net · 15/11/2025
Maybe it’s a little over optimistic, but I legitimately feel like the fabled Year Of the Linux Desktop™ is really coming.
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Julia Silge @juliasilge.com · 08/11/2025
My talk from posit::conf earlier this fall on getting unstuck with #Python is now available to watch! - Ten years ago, I attempted to learn Python and it went EXTRMELY badly 😩 - I am really happy that so much tooling in this area has improved SO much since then 😌 youtu.be/pMVYl9fx1EE
youtu.be
How I got unstuck with Python (Julia Silge, Posit) | posit::conf(2025)
YouTube video by Posit PBC
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Emi @emibirdee.art · 09/11/2025
Just restocked a lot of stickers including these guys! (shop.emibirdee.com/products/be-...)
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Jon Harmon (he/him/his) @jonthegeek.com · 08/11/2025
One more test from #RStats console before I share my wrapper around {bskyr}...
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James Holland Jones @juemos.bsky.social · 08/11/2025
This is an amazing (and infuriating) story, complete with Github repos of their analysis!
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Dr. Stephanie @punkrockscience.bsky.social · 08/11/2025
This obit of Watson is *amazing*.
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David Rach @davidrach.bsky.social · 05/11/2025
Happy to officially announce that we are hosting a free “Cytometry in R” weekly mini-course, aimed at coding beginners, both in-person here at the University of Maryland, Baltimore and virtually, starting up in December/January. For details: umgccfcss.github.io/CytometryInR/ #rstats #flowcytometry
Course banner
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Adrian Liston @labliston.bsky.social · 28/10/2025
Huge credit to @colibricytometry.bsky.social, who has spent years working on every aspect of the spectral flow cytometry pipeline. Follow the Colibri blog to get tips in real-time, pre-pre-print! www.colibri-cytometry.com
colibri-cytometry.com
Cytometry Colibri | flow cytometry
Cytometry Colibri offers scientific consulting, data analysis, panel design, method development, tutoring and all things related to flow cytometry. Expertise in high parameter flow cytometry, spectra...
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Adrian Liston @labliston.bsky.social · 28/10/2025
First, pos-neg gating. Ideal controls are your actual antibodies on the actual cells. However different antibodies bind different cells (see: CD4 vs XCR1 below), meaning they have different backgrounds to control. AutoSpectral matches the FSC-SSC of each pos to a suitable neg: with results!
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Achim Zeileis @zeileis.org · 17/10/2025
💡 Came across this nice tool today: 🎨 qualpal for algorithmically choosing maximally distinct colors under certain restrictions #dataviz JOSS paper, online tool, R package #rstats joss.theoj.org/papers/10.21...
joss.theoj.org
Qualpal: Qualitative Color Palettes for Everyone
Larsson, J., (2025). Qualpal: Qualitative Color Palettes for Everyone. Journal of Open Source Software, 10(114), 8936, https://doi.org/10.21105/joss.08936
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Mike O'Brien @obrien.page · 18/10/2025
If you're one of the 0.5 people who actually use any of my #rstats packages: please, please, please send a PR my way with your beginner-friendly docs rather than make a new resource. I'll make you an official author and everything...
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Tara Sutherland @drtesutherland.bsky.social · 15/10/2025
Still time to join our Flow Cytometry Core at the University of Aberdeen as a lead scientist
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Darren Dahly @statsepi.bsky.social · 11/10/2025
Teaching scientists about statistics is not even that difficult. But it slows down how many papers get published, so we can't do it. I mean, why would we put any brakes on LLM produced papers by insisting scientists and reviewers understand the output!? Madness.
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Damian Maseda @dmaseda.bsky.social · 09/10/2025
Very proud of our team at the @i3h-upenn.bsky.social, for publishing an article that I believe contributes to a deeper and more robust analysis of cytometry data, enabling the scale-up of human immune profiling. #immunology #cytometry onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Cleanet: Robust Doublet Detection in Cytometry Data Based on Protein Expression Patterns
Flow and mass cytometry experiments are essential for profiling immune cells at single-cell resolution. Better understanding of human immunology increasingly involves analyzing studies at the scale o...
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bioRxiv Bioinfo @biorxiv-bioinfo.bsky.social · 08/10/2025
Citizen science gamers enable automated flow cytometry gating through machine learning www.biorxiv.org/content/10.1101/202…
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David Rach @davidrach.bsky.social · 04/10/2025
www.nytimes.com/2025/10/01/a...
nytimes.com
5 Minutes That Will Make You Love Nina Simone
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Bioconductor @bioconductor.bsky.social · 02/10/2025
🌟 Save the Date! BioC2026 is Coming! 🌟 Mark your calendars for August 10-12, 2026, at Fred Hutch Cancer Center, Seattle, WA, USA.
Save the Date graphic for Bioconductor Conference 2026. Text reads: 'SAVE THE DATE: BIOC2026, August 10–12, 2026, Fred Hutch Cancer Center, Seattle, Washington.' The Bioconductor logo appears in the top right. A stylised dark blue silhouette of the Seattle skyline, including the Space Needle and Ferris wheel, runs along the bottom.
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David Rach @davidrach.bsky.social · 01/10/2025
www.nytimes.com/2025/10/01/o...
nytimes.com
Jane Goodall, Eminent Primatologist Who Chronicled the Lives of Chimps, Dies at 91
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bioRxiv Bioinfo @biorxiv-bioinfo.bsky.social · 26/09/2025
CytoScan: Automated detection of technical anomalies for cytometry quality control www.biorxiv.org/content/10.1101/202…
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David Rach @davidrach.bsky.social · 19/09/2025
I am intrigued, but now need to track down the specific soap 😂
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David Rach @davidrach.bsky.social · 16/09/2025
"And that’s the other problem — the bigger one: how much people want this causality. They want to believe that we have the data and methods to show that a disease that wipes out bats leads to an 8% increase in infant mortality."
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