Confused about coordinate reference systems (CRSs)? 🧭🌍🐍 Chapter 6 of geocompy dives into: - Geographic vs projected CRSs (lon/lat vs meters) - Getting, setting & reprojecting CRSs - Why ignoring CRSs can break your analysis 🚨 👉 py.geocompx.org/06-reproj #GeoPython #Python #GISchat #geocompx

The {sf} package continues to blow my mind with how easy it is to make maps with #rstats and ggplot (code for that map here gist.github.com/andrewheiss/...)

Two days ago, our PostDoc @schwalb-willmann.de visited the Institute for Geoinformatics at University of Münster on invitation by @edzer.bsky.social and Johannes Heisig to give a talk at the GI forum on using animals to classify land use.

The CRAN Spatial Task View just got a proper table of contents (thanks to Krzysztof Dyba) -- easier to navigate all those R spatial packages now. 🌍 > cran.r-project.org/view=Spatial #RStats #RSpatial #OpenSource #gischat

Any examples of fitting a graph convolution network in {torch} or {luz} folks are aware of? #rstats

infos about more great talks at the GI forum here: www.uni-muenster.de/Geoinformati...

today our postdoc @schwalb-willmann.de will talk at the GI forum in Münster about the power of #animaltracking data for innovative #earthobservation information @edzer.bsky.social @jakubnowosad.com Hanna Meyer - thanks for the invite!

Thank you @hormiga.bsky.social for writing this book. Beyond learning what may be right/wrong with current practices and many new tips, it makes you think throughout what kind of teacher you want to be and how to get there. Highly recommend press.uchicago.edu/ucp/books/bo... #teaching #AcademicSky

Working with raster + vector together in Python? 🗺️🌍🐍 Chapter 5 of geocompx talks about: - Cropping & masking rasters with vectors - Extracting raster values via vector data - Raster ↔️ vector conversion (polygonize & rasterize) 👉 py.geocompx.org/05-raster-ve... #GeoPython #Python #GISchat

The Global FOSS4G conference in Auckland is just a few weeks away! I'm sorry I forgot to share this here, but I'm excited to be speaking about the state of GeoArrow **on the web**. 21th November, 11:00–11:25 talks.osgeo.org/foss4g-2025/...

#30DayMapChallenge starts tomorrow: 30 days, 30 map ideas. If you’re using R, Python, or Julia, consider sharing open-source examples or tutorials. 🧭 30daymapchallenge.com #GeoData #DataViz #Maps #SpatialViz

I've been posting about PMTiles for geospatial visualization for good reason. However - you can push mapgl quite a ways without tiles! In this post, I cover how to map all 85,000+ Census tracts in the US without pre-tiling, along with performance tips. walker-data.com/post...

Interested in teaching spatial data skills for urbanism? 🗺️ The Geospatial Data Carpentry for Urbanism (TU Delft / thecarpentries) seeks beta pilot workshops. Details 👉 carpentries.org/blog/2025/10... #RStats #GIS #Carpentries #RSpatial

A lot of you are asking about PMTiles - one of the most exciting innovations in geospatial in the past decade. My most recent blog post helps you get started. Use this reproducible workflow to learn how to create, explore, and visualize PMTiles. walker-data.com/post...

Want to transform the geometry of spatial data in Python? ✨🌍🐍 Chapter 4 of geocompy covers: - Vector: simplify, buffer, centroid, clip, unions, affine transforms - Raster: crop, resample, aggregate, align datasets 👉 py.geocompx.org/04-geometry-... #GeoPython #Python #GISchat #geocompx

Announcing 🍱 Lunchbox Models 🍱 – an online seminar series all about ecological modelling & career insights, hosted by the @gfoesoc.bsky.social AKs Computational Ecology and YoMos 🦊 Find the topics and details as well as access to Zoom on our webpage: www.yomos.org/lunchbox-mod... Please share!

Still fascinated with #webR and its potential for teaching stats Here students can play (even from their phones) and find out themselves how the p-value depends on sample size pakillo.github.io/LM-GLM-GLMM-... #rstats

🌍 Blog series: Spatial Machine Learning with R From caret to tidymodels, mlr3, and specialized spatial ML packages — explore how spatial context changes the way we build ML models in R. Start with Part 1 👉 geocompx.org/post/2025/sm... #RStats #SpatialML #MachineLearning #RSpatial

📚 I have a few misprinted (black and white) hardcovers of Geocomputation with R. Happy to send them to readers in Europe. Email me if you’d like one — if there’s lots of interest, I’ll draw randomly. Shipping costs optional. #Gischat #Giveaway #RStats #RSpatial #geocompr

Spatial operations in Python? 📍🌍🐍 Chapter 3 of Geocomputation with Python covers: - Vector: spatial joins, subsetting, aggregation, etc. - Raster: map algebra (local, focal, zonal, global), tiling & merging 👉 py.geocompx.org/03-spatial-o... #GeoPython #Python #GISchat #geocompx

I'll write a post soon specifically on #rstats, but this week's post includes a full example of how SedonaDB can do this just as well in R as it can in Python!

This week's Apache Sedona drop: lazy/selective GeoParquet reads in SedonaDB, @duckdb.org, GDAL, and GeoPandas! This is how querying a GeoParquet file plonked on a web server can be queried locally (and why GeoParquet can be even faster locally!) dewey.dunnington.ca/post/2025/la... #gischat

New R package: gridmappr by Roger Beecham It automates creating small multiple gridmap layouts by optimally placing geographic points into grid cells (inspired by Jo Wood’s Observable notebooks). 👉 github.com/rogerbeecham... #RStats #RSpatial #DataViz #GISchat

🗺️ New blog post: introducing Spatial Data Visualization with tmap, a work-in-progress guide to thematic mapping in #RStats. Learn about the book, its progress, and how to contribute: geocompx.org/post/2025/tm... #DataViz #Mapping #tmap #geocompx

🗺️ New blog post: introducing Spatial Data Visualization with tmap, a work-in-progress guide to thematic mapping in #RStats. Learn about the book, its progress, and how to contribute: geocompx.org/post/2025/tm... #DataViz #Mapping #tmap #geocompx

Working with geospatial attribute data in Python? 📊🌍🐍 Chapter 2 of Geocomputation with Python covers subsetting, aggregation & joins for vector data, and subsetting + summarizing raster values. 👉 py.geocompx.org/02-attribute... #GeoPython #Python #GISchat

On the blog: how to map hundreds of thousands of US Census blocks performantly with R and PMTiles. This is the first in a three-post series on production mapping workflows for big spatial datasets with PMTiles. Read the post: walker-data.com/post...

New blog post by Adam Steer: Identifying deformed sea ice using geomorphons ❄️🌊 Exploring sea ice as a landscape analysis problem with QGIS + GRASS GIS, using drone + lidar data. 👉 www.spatialised.net/identifying-... #Geospatial #RStats #RSpatial #GISchat

The European Open Source Awards marks a celebration and one of a kind recognition of open source excellence in Europe. Open Call for Nominations: https://europeanopensource.academy/open-call-nominations-european-open-source-awards-2026

Starting out with geographic data in Python? 🌍🐍 Chapter 1 of Geocomputation with Python introduces vector & raster models + core tools (geopandas, shapely, rasterio). 👉 py.geocompx.org/01-spatial-d... #GeoPython #Python #GISchat

Interesting...I think of GeoParquet and GeoArrow as tech that allows more people to avoid the cloud (i.e., use your laptop to do things that everyone thought they needed "the cloud" for five years ago). When your 14 GB .fgb files become 2GB GeoParquets, you can fit a whole lot more of them locally!

redistio now uses @kylewalker.bsky.social's mapgl for interactive redistricting map editing! redistio is an #rstats package that uses Shiny to draw redistricting maps locally. Unlike other district editors, this provides access to our simulation algorithms, interactively! Short demo:

Preview the 2.5 billion buildings from @overturemaps.bsky.social in a single line of R code? Why not? Check out the pmtiles package: github.com/walkerke/pmt...

Come work with me and the best team!! We work openly, together, with kindness. We care about onboarding, and have the best team culture I've ever experienced.

Updates are underway in the {stats19} #rstats package, the quickest way to access large, high-quality collision datasets with geographical location and dozens of other variables at collision, vehicle, and casualty levels: new contributor (Blaise 🔥) + new data almost ready to launch 🚀

New post by David O’Sullivan: “Raster really is faster (and vaster), but vector just seems more corrector.” Part 1A of a series revisiting ideas from Geographic Information Analysis: fractals, raster vs vector, and R code. 👉 dosull.github.io/posts/2025-0... #Geospatial #RStats #RSpatial #GISchat

🌍Exploring Sentinel-2 with the Copernicus Data Space Ecosystem (CDSE)? Hugh Graham’s guide with vrtility in #rstats. Includes authentication & query of imagery and building cloud-free composites. permian-global-research.github.io/vrtility/art... #RSpatial #RemoteSensing #EarthObservation #GIS

Spatial Data Science across languages now has a website: https://spatial-data-science.github.io/ Thanks @martinfleis !

In preparation for the Data Science for Transport Planning (DSTP) course I'm teaching this week, I've updated the geocompx docker images to make them smaller, faster, and more flexible. Happy with the results: a portable multilingual environment for reproducible (transport) #DataScience

Had a privilege and pleasure to teach terra pkg (created by @roberthijmans.bsky.social et al.) and spatial sampling with R together with Alexandre Wadoux at the #EOSummerSchool2025 at WICC. You can follow the terra tutorial from here: differ.blog/p/processing... 📹: youtu.be/q9sQkg7BeAc?...

This week (Sep 15–19) I’m attending the #ECMLPKDD2025 conf in Porto! Happy to chat about the intersection of machine learning and spatial data -- reach out if you’d like to meet. 🌍 #ECMLPKDD2025 #MachineLearning #Geospatial

🚀 Book in progress: Spatial Data Visualization with tmap A guide to creating thematic maps in R with the tmap package. Covers everything from loading data to interactive and animated maps, with reproducible code. Read online: tmap.geocompx.org #rstats #rspatial #geocompx #gischat #maps

📢 Materials from the OpenGeoHub Summer School 2025 (“Data Science for Earth Observation”) by Krzysztof Dyba are now online. Discuss how to access, process, and analyze satellite data with #RStats. 👉 github.com/kadyb/OGH2025 #RSpatial #RemoteSensing #GISchat

The Geocomputation with Python #opensource book project just got an upgrade, with Python 3.12 now the default in the devcontainer. You can launch a full dev environment directly from your browser with GitHub Codespaces. Give it a try here: github.com/codespaces/n...

🌍 Call for Papers! Submit to the Progress in Physical Geography special issue: Coding Earth: Open Source Solutions in Physical Geography 📅 Deadline: 18 Dec 2025 🔗 journals.sagepub.com/home/ppg #OpenSource #OpenScience #GISchat #RSpatial #GeoPython

We’ve updated the geocompx README. Find guides, books, and tools for geocomputation in R, Python, and Julia — plus ways to get involved. Take a look: github.com/geocompx #Geocomputation #RStats #Python #OpenSource #geocompx

📦 New R package: sfhotspot by Matt Ashby Identify & analyze spatial clusters of points (places/events) entirely with sf objects. Includes tools for counts, change over time, kernel density, Getis–Ord Gi*, etc. 🔗 GitHub: github.com/mpjashby/sfh... #RStats #GISchat #Geocomputation #RSpatial

The Spatial Data Science Symposium #SDSS2025 is back. Check out the Call for Sessions and Call for Papers: sdss2025.spatial-data-science.net

I've added a few new features to {grateful}, the package that facilitates citation of #rstats packages, and I'd love feedback before submitting to CRAN 🧵

🌍 Which geospatial conferences are you excited about in 2026? I'm compiling a list at github.com/Nowosad/conf... -- please contribute events you know about! What am I missing? #GIS #RemoteSensing #SpatialData #GISchat