Jakub Nowosad
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nowosad.fosstodon.org.ap.brid.gy
Jakub Nowosad
@nowosad.fosstodon.org.ap.brid.gy
Computational geographer. Associate Professor at AMU, Poznan, Poland. Co-author of http://r.geocompx.org, http://py.geocompx.org, and http://r-tmap.github.io […]

[bridged from https://fosstodon.org/@nowosad on the fediverse by https://fed.brid.gy/ ]
Confused about coordinate reference systems (CRSs)? 🧭🌍🐍

Chapter 6 of Geocomputation with Python dives into:

- Geographic vs projected CRSs (lon/lat vs meters)
- Getting, setting & reprojecting CRSs
- Why ignoring CRSs can break your analysis 🚨

👉 […]

[Original post on fosstodon.org]
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. 🌍

> https://cran.r-project.org/view=Spatial

#rstats #rspatial #opensource #gischat
November 5, 2025 at 2:02 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 👉 https://geocompx.org/post/2025/sml-bp1/

#rstats #spatialml #machinelearning #rspatial
October 22, 2025 at 1:02 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 2:01 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).

👉 https://github.com/rogerbeecham/gridmappr

#rstats #rspatial #dataviz #gischat
October 15, 2025 at 1:02 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: https://geocompx.org/post/2025/tmap-bp1/

#dataviz #mapping #tmap #geocompx
October 14, 2025 at 1:02 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.

👉 https://py.geocompx.org/02-attribute-operations

#geopython #python #gischat
October 12, 2025 at 1:02 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.

👉 https://www.spatialised.net/identifying-deformed-sea-ice-using-geomorphons/

#geospatial #rstats #rspatial #gischat
October 8, 2025 at 1:02 PM
Starting out with geographic data in Python? 🌍🐍

Chapter 1 of Geocomputation with Python introduces vector & raster models + core tools (geopandas, shapely, rasterio).

👉 https://py.geocompx.org/01-spatial-data

#geopython #python #gischat
October 5, 2025 at 1:01 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.

👉 […]

[Original post on fosstodon.org]
October 1, 2025 at 1:01 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 […]

[Original post on fosstodon.org]
September 24, 2025 at 1:22 PM
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
September 15, 2025 at 1:03 PM
🚀 Book in progress: Spatial Data Visualization with tmap

A practical guide to creating clear thematic maps in R with the tmap package.
Covers everything from loading data to interactive and animated maps, with reproducible code and examples.

Read online […]

[Original post on fosstodon.org]
September 14, 2025 at 1:00 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.

👉 https://github.com/kadyb/OGH2025

#rspatial #remotesensing #gischat
September 10, 2025 at 2:01 PM
🌍 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
September 7, 2025 at 2:01 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: https://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*, & classification.

🔗 GitHub […]

[Original post on fosstodon.org]
August 27, 2025 at 2:01 PM
🌍 Which geospatial conferences are you excited about in 2026?

I'm compiling a list at https://github.com/Nowosad/conferences_2026 -- please contribute events you know about!

What am I missing?

#gis #remotesensing #spatialdata #gischat
August 20, 2025 at 2:02 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!

🔗 https://r.geocompx.org/conclusion

#rstats #rspatial #geocompx
August 10, 2025 at 4:01 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: https://youtu.be/tjNEoIYr_ag?feature=shared
Slides: https://dewey.dunnington.ca/slides/rspatial2025

#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.

🔗 https://r.geocompx.org/eco

#rstats #rspatial #geocompx
August 3, 2025 at 4:01 PM
New R package: rgeomorphon 📦 by Andrew Brown

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

🔗 https://github.com/brownag/rgeomorphon

#rstats #gis #terrainanalysis #remotesensing #rspatial
July 30, 2025 at 2:01 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.

🔗 https://r.geocompx.org/location

#rstats #rspatial #geocompx
July 27, 2025 at 3:07 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: https://www.goodreads.com/book/show/214736719-geocomputation-with-r
Amazon […]

[Original post on fosstodon.org]
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.

🔗 https://r.geocompx.org/transport

#rstats #rspatial #geocompx
July 20, 2025 at 4:03 PM