Jakub Nowosad
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jakubnowosad.com
Jakub Nowosad
@jakubnowosad.com
Computational geographer. Associate Professor at AMU, Poznan, Poland. Co-author of http://r.geocompx.org, http://py.geocompx.org, and http://tmap.geocompx.org books. #rstats #rspatial #geocompx

https://jakubnowosad.com/
🚀 Excited to speak at the Rome R User Group Thu, Nov 27 (6PM CET)!

I’ll show practical workflows for geospatial predictive mapping in R — including tools to avoid spatial bias and improve prediction reliability.

More info: www.meetup.com/rome-r-users...

#RStats #Geospatial #GISchat #RSpatial
November 17, 2025 at 2:04 PM
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
November 9, 2025 at 2:02 PM
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
November 5, 2025 at 2:03 PM
🌍 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
October 22, 2025 at 1:05 PM
📚 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
October 21, 2025 at 2:00 PM
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
October 15, 2025 at 1:04 PM
🗺️ 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
October 14, 2025 at 1:03 PM
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
October 12, 2025 at 1:03 PM
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
October 8, 2025 at 1:05 PM
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
October 5, 2025 at 1:03 PM
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
October 1, 2025 at 1:03 PM
🌍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
September 24, 2025 at 1:03 PM
🚀 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
September 14, 2025 at 1:01 PM
📢 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
September 10, 2025 at 2:00 PM
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
September 1, 2025 at 2:03 PM
📦 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
August 27, 2025 at 2:02 PM
🌍 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
August 20, 2025 at 2:02 PM
Good question, Arseny -- I have no idea (maybe someone else has any ideas?). I would guess some historical reasons, but it is just a guess. Interestingly, the differences are not aligned with the current German land borders, but some of them seem to be related to lower subdivisions.
August 11, 2025 at 1:05 PM
Chapter 16: Summary & Future of Geocomputation 🚀📖

What’s next? 📌 This final chapter reflects on key themes, gaps, and the future of geocomputation. Crucially, learn how to contribute to open-source spatial communities!

🔗 r.geocompx.org/conclusion

#rstats #rspatial #geocompx
August 10, 2025 at 4:02 PM
Check out "Scaling the r-spatial ecosystem" by Dewey Dunnington 🌍📦
An exploration of how R’s spatial tools can be used for big(ger) data.

Video: youtu.be/tjNEoIYr_ag?...
Slides: dewey.dunnington.ca/slides/rspat...

#RStats #rspatial #GIS #SpatialData
August 6, 2025 at 2:03 PM
Chapter 15: Ecological Modeling & Geocomputation 🌱🗺️

Modeling the floristic gradient to reveal distinctive vegetation belts! 📌 Learn spatial modeling techniques with random forests & hyperparameter tuning to analyze ecological data in R.

🔗 r.geocompx.org/eco

#rstats #rspatial #geocompx
August 3, 2025 at 5:30 PM
New R package: rgeomorphon 📦 by Andrew Brown

Classifies terrain forms using a parallel C++ implementation of the geomorphon algorithm.

🔗 github.com/brownag/rgeo...

#RStats #GIS #TerrainAnalysis #RemoteSensing #RSpatial
July 30, 2025 at 2:02 PM
Chapter 14: Geomarketing & Location Analysis 🏪📍

Where should you open a bike shop? 📌 Learn how to use census & OpenStreetMap data for spatial decision-making in geomarketing & site selection.

🔗 r.geocompx.org/location

#rstats #rspatial #geocompx
July 27, 2025 at 3:01 PM
Have you read Geocomputation with R?📘
If you found it helpful, we’d really appreciate a quick review — it helps others find the book too!

Goodreads: www.goodreads.com/book/show/21...
Amazon: www.amazon.com/dp/1032248882
Book: r.geocompx.org

#rstats #gis #geocompx #rspatial
July 23, 2025 at 4:03 PM
Chapter 13: Transport Systems Analysis 🚶🚴🚌

Model transport networks! 📌 Analyze travel patterns, desire lines, routes, and accessibility using open data and reproducible geospatial workflows in R.

🔗 r.geocompx.org/transport

#rstats #rspatial #geocompx
July 20, 2025 at 4:02 PM