Roozbeh Valavi
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rvalavi.bsky.social
Roozbeh Valavi
@rvalavi.bsky.social
Scientific software, species distribution models, ecological statistics, geospatial analysis, machine learning, DevOps, Rust, C/C++, Python, R

GitHub: https://github.com/rvalavi
Reposted by Roozbeh Valavi
My favorite #Python package to use is spopt, a library for spatial optimization.

It helps you with:

πŸ“Š Facility location planning;
πŸ“Š Sales territory design;
πŸ“Š Maximizing market share;

And much more! Check it out here:

pysal.org/spopt/
December 27, 2025 at 2:56 PM
Reposted by Roozbeh Valavi
Delighted to share our new review paper on "Understanding and predicting animal movements and distributions in the Anthropocene" πŸŽ‰πŸΎπŸ¦ŒπŸ§πŸ¦…πŸŒ

#AnimalMovement #MovementEcology @besmovesig.bsky.social
I'll talk about this more next week but can't resist finishing my Friday with this update

Our paper is online now in early view! Sara Gomez, Luca BΓΆrger & I led a fantastic team of researchers in this review:
Understanding and predicting animal movements and distributions in the Anthropocene
Understanding and predicting animal movements and distributions in the Anthropocene
This review provides a framework to better understand and predict animal movements and distributions in human-modified environments. Bridging the gap between movement models and management/conservati...
besjournals.onlinelibrary.wiley.com
April 4, 2025 at 3:41 PM
Reposted by Roozbeh Valavi
{collinear} 3.0 is now on CRAN (yay! πŸ₯³)

This #rstats package automates multicollinearity management to improve model robustness and interpretability.

You can learn more at blasbenito.github.io/collinear/, but here's a summary of the most exciting new features: 🧡 1/5
collinear: Automated Multicollinearity Management
Provides a comprehensive and automated workflow for managing multicollinearity in data frames with numeric and/or categorical variables. The package integrates five robust methods into a single functi...
blasbenito.github.io
December 9, 2025 at 8:04 AM
Reposted by Roozbeh Valavi
tmap or ggplot2 for maps? πŸ—ΊοΈ

David O’Sullivan breaks down the trade-offs in a blog post.

URL: dosull.github.io/posts/2024-1...

#RStats #RSpatial #Maps #tmap #ggplot2
tmap vs.Β ggplot2 for mapping – Geospatial Stuff
For me at least the choice between ggplot2 and tmap is an ongoing question. Here are my latest thoughts on the subject (with code).
dosull.github.io
November 12, 2025 at 2:02 PM
Reposted by Roozbeh Valavi
In #drylands, plants don’t grow randomly β€” they self-organize into disordered hyperuniform patterns that help them use water wisely & endure extreme aridity. A beautiful hidden logic of nature, revealed in a new @pnas.org study doi.org/10.1073/pnas... including #Maestrelab alumni
October 8, 2025 at 6:59 AM
Just installed mine yesterday! Unfortunately I don’t have any magic solutions. You shouldn’t need C++/Rtools, but for R itself just the installer from CRAN is pretty much what you need.
September 25, 2025 at 10:04 PM
Reposted by Roozbeh Valavi
Only a pre-print for now, but after 4 years of hard work I couldn't resist sharing this!

The Global Canopy Atlas: analysis-ready maps of 3D structure for the world's woody ecosystems

πŸ“œ: doi.org/10.1101/2025...

Huge team effort led by the brilliant Fabian Fischer!
September 5, 2025 at 2:29 PM
When taking things for granted! I still so many of their videos in my wish list πŸ€¦πŸ»β€β™‚οΈ
June 11, 2025 at 9:07 AM
Reposted by Roozbeh Valavi
β€œobserved patterns of island biodiversity … demonstrate that neutral models can make accurate predictions of higher-order diversity statistics. β€œ onlinelibrary.wiley.com/doi/abs/10.1... πŸ§ͺ🌐
Quantitatively Testing Predictions From Mechanistic Models: A Case Study for Island Biodiversity
A key test of an ecological model is whether it can quantitatively predict unseen aspects of the data not used in model fitting. Here, we test whether a model fitted only to island alpha diversity ca....
onlinelibrary.wiley.com
June 10, 2025 at 8:22 AM
Reposted by Roozbeh Valavi
Listen to AI podcast on Kass et al. β€žAchieving higher standards in SDMβ€œ earthskysea.org/ecocast-podc... by @earthskysea.bsky.social
November 25, 2024 at 7:28 AM
Reposted by Roozbeh Valavi
Scores of SDM packages for R... what should I do? Out now, lead by the indefatigable Jamie Kass, our paper in
@ecography.bsky.social on the SDM Software Universe! doi.org/10.1111/ecog... Alternatively, listen to the paper @ earthskysea.org/ecocast-podc...
Achieving higher standards in species distribution modeling by leveraging the diversity of available software
The increasing online availability of biodiversity data and advances in ecological modeling have led to a proliferation of open-source modeling tools. In particular, R packages for species distributi...
doi.org
November 24, 2024 at 6:33 PM