@robinlovelace@fosstodon.org
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robinlovelace

@robinlovelace@fosstodon.org

Data science, transport modelling and geocomputation for evidence-based policy, transport decarbonisation and enlightenment.
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robinlovelace, to random
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Shout out to any #RStats developers with an interest in geographic data and performance: help wanted on a tricky mission to speed-up the rnet_merge() function in {stplanr}. To find out more fork the repo, checkout this branch, and run the reprex to give it a spin: https://github.com/ropensci/stplanr/pull/550 🙏

robinlovelace,
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For context: this isn't just a theoretical problem. We're using it in practice to help build a strong evidence base for more sustainable transport systems. Prototype outputs below, work in progress 🏗️

video/mp4

robinlovelace,
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@martinfleis pre-simplified open network from OS. In other countries we can use implementations by @wnd and others, key bit here is the network joining and think I've just fixed the computational bottleneck (by replacing lwgeom with geosphere).

robinlovelace,
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Solve (I think) 🎉

Not many areas of research, engineering, or life for that matter where you can get 100x speed-ups. Huge thanks to @josi for the hardest #rustlang interface bit of this!

robinlovelace, to random
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Was great to represent @UniLeedsNews at the opening of Leeds' bike hire scheme. From small beginnings (200 easy-to-ride e-bikes) great things can grow!
I'm quoted in this news article on the scheme: https://www.thebusinessdesk.com/yorkshire/news/2114285-brabin-hails-first-week-of-city-e-bike-scheme

wnd, to random
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For those interested in such things, here are the slides from my talk tonight at #LeedsDigi23

https://github.com/anisotropi4/shambles/tree/main/%C3%A7a-plane

One of the ugly issues around decarbonisation is the failure of the transport to get better, mostly because people need to get out of planes and cars

While cycling and walking are great, if you want to get from Stockholm to Leeds you might something a bit faster

robinlovelace,
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@wnd Hey Will, only just saw this, sorry I missed you. Next time you're in Leeds let me know (or I'll be more observant of your posts!)

robinlovelace,
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@wnd Amazing. We will have to get a beer/coffee/other at some point, maybe with @GarethDennis also in tow : )

robinlovelace, to random
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You may have heard of @libreoffice and @linuxfoundation but did you know there are 100s of other open source alternatives to popular apps like Obsidian, Slack and more? Check them out the video below! https://tilvids.com/videos/watch/2832654f-fb2c-4c45-9ec0-05f6ce3287cc

robinlovelace, to opensource
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Call out to any JavaScript, TypeScript developers + OpenStreetMap people, any ideas how to add an 'edit this in OSM' link that takes users to the edit page zoomed in the right place? Please see here, marked as "Help wanted" 🙏 https://github.com/nptscot/nptscot.github.io/issues/91

robinlovelace,
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@daniel Amazing, many thanks! Currently look like it's kind of working (see PR linked to issue for details) 🎉

robinlovelace, to random
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Before and after maps from the Network Planning Tool for Scotland. Spot the difference! Shows the benefits of continuously updated #OpenStreetMap data and regularly updating transport models based on this amazing #OpenAccess and community-generated resource.

image/png

robinlovelace,
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Cause of the update: new bridge in #Renfew, Scotland. This was only opened in August 2023 and apparently has a decent amount of 🚲 trips already (anyone with local knowledge let us know). Stoked that this is in our results already! Source: https://www.dailyrecord.co.uk/in-your-area/renfrewshire/new-bridge-connects-people-businesses-27868349

robinlovelace,
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See the code that generates these here: https://github.com/nptscot/npt #opensource research for public benefit 🚀

robinlovelace, (edited ) to random
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Reading a bit of old school literature for once. There be wisdom in these here words: "Probably the whole of Newton’s controversy with Leibniz, which ruined English mathematics for over a hundred years, would have been avoided if Newton had been robust and able to enjoy ordinary pleasures." Ouch 😅 bonus points to anyone who can guess author without looking it up : )

robinlovelace,
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From the same person, not much of a clue, but interesting take: "What I suggest is that no one should learn how to obey, and no one should attempt to command. ... Our purposes should be our own, not the result of external authority, and our purposes should never be forcibly imposed upon others. This is what I mean when I say no one should command and no one should obey." Reasonable today?

robinlovelace,
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@paezha Don't think so but if you're basing your decision to change based on the second quote: you're probably best keeping the original vote!

robinlovelace,
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You lot are good over half got right answer!

robinlovelace, to random
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Just launched: #rstats package {stplanr} version 1.1.2 🚀

image/png

robinlovelace,
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@tordans good quest. Plan is: update the network on that site to make it less 'bitty', beaded, and clearer. Thoughts?

robinlovelace, to random
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New functionality for joining spatial networks is now working 🎉 Coming to a free and open source package for sustainable transport planning for reproducible research soon...

robinlovelace,
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@dblodgett Sure, here's an in-progress paper https://github.com/nptscot/networkmerge/blob/main/paper.md#network-simplification-application-to-the-visualisation-of-transport and here's the function that implements it in #RStats https://docs.ropensci.org/stplanr/reference/rnet_merge.html still a bit rough around edges and opportunities to optimise but seems to work!

robinlovelace,
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@dblodgett yeah your river stuff looks awesome and relevant for transport nets

robinlovelace, to rust
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The #rustlang {h3o} #RStats package by @josi just gained an update. Now it behaves the same as sf by default, but better, returning all hexagons that intersect with the input object 🎉 Details: https://github.com/JosiahParry/h3o/issues/6

robinlovelace, to foss
@robinlovelace@fosstodon.org avatar

Just discovered Manubot, a new collaborative writing platform, and it looks amazing. Has anyone tried using this #foss project? Wondering how well it integrates with Quarto, if at all. Interested in tools for collaboration? The computational biologists have you covered! #fediscience #rstats #Python #Quarto

robinlovelace,
@robinlovelace@fosstodon.org avatar

Docs, published as a peer reviewed paper: https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1007128

Well-maintained GitHub repos: https://github.com/manubot/

This project seems amazing 🔥 want to learn more...

robinlovelace, to python
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New #geocompx blog post on Geographic Data Analysis in #RStats and #Python. The first time equivalent code for reading, plotting, and analysing geographic vector data in these two popular #DataScience languages are provided side-by-side 🚀
#OpenSource: https://geocompx.org/post/2023/ogh23/

robinlovelace,
@robinlovelace@fosstodon.org avatar

@loreabad6 @cboettig @nowosad @underdarkGIS @michaeldorman84 that would be amazing

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