Arthur Katossky
@katossky.bsky.social
Des maths, de l'informatique et un twist de sciences sociales
Reposted by Arthur Katossky
🎄 Hope you’ve got all your presents ready 💝
Google search interest shows a stable pattern:
🎅 “Christmas gift wife” peaks just before Christmas Eve
🎅 “Christmas gift husband” peaks much earlier
#MerryChristmas to all of you! 🎁
📈 Google Trends (Nov 18–Dec 24, 2020–2024)
#dataviz #ggplot2
Google search interest shows a stable pattern:
🎅 “Christmas gift wife” peaks just before Christmas Eve
🎅 “Christmas gift husband” peaks much earlier
#MerryChristmas to all of you! 🎁
📈 Google Trends (Nov 18–Dec 24, 2020–2024)
#dataviz #ggplot2
December 24, 2025 at 10:16 AM
🎄 Hope you’ve got all your presents ready 💝
Google search interest shows a stable pattern:
🎅 “Christmas gift wife” peaks just before Christmas Eve
🎅 “Christmas gift husband” peaks much earlier
#MerryChristmas to all of you! 🎁
📈 Google Trends (Nov 18–Dec 24, 2020–2024)
#dataviz #ggplot2
Google search interest shows a stable pattern:
🎅 “Christmas gift wife” peaks just before Christmas Eve
🎅 “Christmas gift husband” peaks much earlier
#MerryChristmas to all of you! 🎁
📈 Google Trends (Nov 18–Dec 24, 2020–2024)
#dataviz #ggplot2
Reposted by Arthur Katossky
Le ministre de l'intérieur a confirmé ce matin que les mégas fichiers du « Traitement d'antécédents judiciaires » (TAJ) et du « Fichier des personnes recherchées » (FPR) ont bien été compromis et que des données ont été volées. La Quadrature du Net s'alarme d'une catastrophe annoncée. ⬇️
December 17, 2025 at 4:59 PM
Le ministre de l'intérieur a confirmé ce matin que les mégas fichiers du « Traitement d'antécédents judiciaires » (TAJ) et du « Fichier des personnes recherchées » (FPR) ont bien été compromis et que des données ont été volées. La Quadrature du Net s'alarme d'une catastrophe annoncée. ⬇️
Reposted by Arthur Katossky
{ggview} can print plots to Viewer (Rstudio or Positron) with true scaling. Adjust plot settings and see the final proportions immediately.
Save the plot once 👌
e.g.:
ggplot(...) +
ggview::canvas(width = 220, height = 220*2/3, units = "mm", dpi = 300)
per @nrennie.bsky.social #datavis #rstats
Save the plot once 👌
e.g.:
ggplot(...) +
ggview::canvas(width = 220, height = 220*2/3, units = "mm", dpi = 300)
per @nrennie.bsky.social #datavis #rstats
December 16, 2025 at 10:53 PM
{ggview} can print plots to Viewer (Rstudio or Positron) with true scaling. Adjust plot settings and see the final proportions immediately.
Save the plot once 👌
e.g.:
ggplot(...) +
ggview::canvas(width = 220, height = 220*2/3, units = "mm", dpi = 300)
per @nrennie.bsky.social #datavis #rstats
Save the plot once 👌
e.g.:
ggplot(...) +
ggview::canvas(width = 220, height = 220*2/3, units = "mm", dpi = 300)
per @nrennie.bsky.social #datavis #rstats
Reposted by Arthur Katossky
It has become received wisdom in Brussels and Washington that there is a new “euro-sclerosis”: that the EU economy is lagging the US
This view is wrong
A little primer on the measurement of productivity – and why reports of the economic death of Europe are greatly exaggerated🧵
This view is wrong
A little primer on the measurement of productivity – and why reports of the economic death of Europe are greatly exaggerated🧵
December 12, 2025 at 12:32 PM
It has become received wisdom in Brussels and Washington that there is a new “euro-sclerosis”: that the EU economy is lagging the US
This view is wrong
A little primer on the measurement of productivity – and why reports of the economic death of Europe are greatly exaggerated🧵
This view is wrong
A little primer on the measurement of productivity – and why reports of the economic death of Europe are greatly exaggerated🧵
Reposted by Arthur Katossky
I ignored the strip.clip argument in #ggplot2 for way too long 😲
Combined with a small negative margin tweak, you can place facet labels inside each panel. A tiny trick that makes small multiples feel so much cleaner.
🔵 no manual coordinates
🔵 inherits theme styling
🔵 scales nicely when resizing
Combined with a small negative margin tweak, you can place facet labels inside each panel. A tiny trick that makes small multiples feel so much cleaner.
🔵 no manual coordinates
🔵 inherits theme styling
🔵 scales nicely when resizing
December 12, 2025 at 12:51 PM
I ignored the strip.clip argument in #ggplot2 for way too long 😲
Combined with a small negative margin tweak, you can place facet labels inside each panel. A tiny trick that makes small multiples feel so much cleaner.
🔵 no manual coordinates
🔵 inherits theme styling
🔵 scales nicely when resizing
Combined with a small negative margin tweak, you can place facet labels inside each panel. A tiny trick that makes small multiples feel so much cleaner.
🔵 no manual coordinates
🔵 inherits theme styling
🔵 scales nicely when resizing
Reposted by Arthur Katossky
🆕 La @drees-sante-social.bsky.social vient de publier une étude et des données sur l'orientation et l'accompagnement des bénéficiaires du RSA.
Elles tirent partie d'une nouvelle source de données (les "RI-Insertion"), qui permettent de décrire finement les parcours des BRSA
Fil ⏬
Elles tirent partie d'une nouvelle source de données (les "RI-Insertion"), qui permettent de décrire finement les parcours des BRSA
Fil ⏬
December 12, 2025 at 9:38 AM
🆕 La @drees-sante-social.bsky.social vient de publier une étude et des données sur l'orientation et l'accompagnement des bénéficiaires du RSA.
Elles tirent partie d'une nouvelle source de données (les "RI-Insertion"), qui permettent de décrire finement les parcours des BRSA
Fil ⏬
Elles tirent partie d'une nouvelle source de données (les "RI-Insertion"), qui permettent de décrire finement les parcours des BRSA
Fil ⏬
Reposted by Arthur Katossky
Un agent de préfecture peut-il participer à l’émission de télé-réalité « Mariés au premier regard » ?
December 10, 2025 at 1:26 PM
Un agent de préfecture peut-il participer à l’émission de télé-réalité « Mariés au premier regard » ?
Reposted by Arthur Katossky
« La majorité pro-Brexit de 2016 a littéralement disparu »
www.huffingtonpost.co.uk/entry/ex-pol...
Avec un diagramme alluvial intéressant qui montre que l'évolution démographique du Royaume-Uni influerait aujourd'hui sur le vote pour ou contre le Brexit
www.huffingtonpost.co.uk/entry/ex-pol...
Avec un diagramme alluvial intéressant qui montre que l'évolution démographique du Royaume-Uni influerait aujourd'hui sur le vote pour ou contre le Brexit
December 10, 2025 at 6:56 AM
« La majorité pro-Brexit de 2016 a littéralement disparu »
www.huffingtonpost.co.uk/entry/ex-pol...
Avec un diagramme alluvial intéressant qui montre que l'évolution démographique du Royaume-Uni influerait aujourd'hui sur le vote pour ou contre le Brexit
www.huffingtonpost.co.uk/entry/ex-pol...
Avec un diagramme alluvial intéressant qui montre que l'évolution démographique du Royaume-Uni influerait aujourd'hui sur le vote pour ou contre le Brexit
Reposted by Arthur Katossky
🆕 La @drees-sante-social.bsky.social publie aujourd'hui l’édition 2025 de “Minima sociaux et prestations de solidarité”.
L’ouvrage analyse ces différents dispositifs ainsi que les conditions de vie et les parcours des bénéficiaires.
👉 Voici les principaux enseignements ⤵️ (1/5)
L’ouvrage analyse ces différents dispositifs ainsi que les conditions de vie et les parcours des bénéficiaires.
👉 Voici les principaux enseignements ⤵️ (1/5)
Minima sociaux et prestations de solidarité - Ménages aux revenus modestes et redistribution - Édition 2025 | Direction de la recherche, des études, de l'évaluation et des statistiques
drees.solidarites-sante.gouv.fr
December 4, 2025 at 2:17 PM
🆕 La @drees-sante-social.bsky.social publie aujourd'hui l’édition 2025 de “Minima sociaux et prestations de solidarité”.
L’ouvrage analyse ces différents dispositifs ainsi que les conditions de vie et les parcours des bénéficiaires.
👉 Voici les principaux enseignements ⤵️ (1/5)
L’ouvrage analyse ces différents dispositifs ainsi que les conditions de vie et les parcours des bénéficiaires.
👉 Voici les principaux enseignements ⤵️ (1/5)
Reposted by Arthur Katossky
Clients and workshop participants often ask me: "We want to be neutral. Can you make this chart more objective?"
My answer: No. And neither can you.
1/3
My answer: No. And neither can you.
1/3
November 28, 2025 at 12:25 PM
Clients and workshop participants often ask me: "We want to be neutral. Can you make this chart more objective?"
My answer: No. And neither can you.
1/3
My answer: No. And neither can you.
1/3
Reposted by Arthur Katossky
New knitr / #quartopub #rstats trick. Add this to your setup to add automatic string interpolation to your captions.
November 27, 2025 at 11:44 PM
New knitr / #quartopub #rstats trick. Add this to your setup to add automatic string interpolation to your captions.
Reposted by Arthur Katossky
I worry that systems ignoring the reality of AI use by pretending it is not happening are letting the worst versions of AI use win by default. We need policies that mitigate the worst harm & take advantage of the gains, like Josh Gans proposes for peer review joshuagans.substack.com/p/what-to-do...
November 27, 2025 at 5:19 PM
I worry that systems ignoring the reality of AI use by pretending it is not happening are letting the worst versions of AI use win by default. We need policies that mitigate the worst harm & take advantage of the gains, like Josh Gans proposes for peer review joshuagans.substack.com/p/what-to-do...
Reposted by Arthur Katossky
November 26, 2025 at 12:00 PM
Reposted by Arthur Katossky
When states like Colorado passed policies requiring employers to disclose salary information in job postings, what happened?
It increased competition, and raised wages, without harming employment or changing skill requirements.
Improved functioning of markets, helped workers.
It increased competition, and raised wages, without harming employment or changing skill requirements.
Improved functioning of markets, helped workers.
November 17, 2025 at 4:41 PM
When states like Colorado passed policies requiring employers to disclose salary information in job postings, what happened?
It increased competition, and raised wages, without harming employment or changing skill requirements.
Improved functioning of markets, helped workers.
It increased competition, and raised wages, without harming employment or changing skill requirements.
Improved functioning of markets, helped workers.
Reposted by Arthur Katossky
#TodayinHistory #dataviz #OTD 📊
🎂Nov 11, 1851 Jacques Bertillon born in Paris, France 🇫🇷
1896: Use of area rectangles on a #map to display two variables and their product (population of arrondisements in Paris, percent foreigners; area = absolute number of foreigners)
🎂Nov 11, 1851 Jacques Bertillon born in Paris, France 🇫🇷
1896: Use of area rectangles on a #map to display two variables and their product (population of arrondisements in Paris, percent foreigners; area = absolute number of foreigners)
November 12, 2025 at 1:05 AM
#TodayinHistory #dataviz #OTD 📊
🎂Nov 11, 1851 Jacques Bertillon born in Paris, France 🇫🇷
1896: Use of area rectangles on a #map to display two variables and their product (population of arrondisements in Paris, percent foreigners; area = absolute number of foreigners)
🎂Nov 11, 1851 Jacques Bertillon born in Paris, France 🇫🇷
1896: Use of area rectangles on a #map to display two variables and their product (population of arrondisements in Paris, percent foreigners; area = absolute number of foreigners)
Reposted by Arthur Katossky
Today in economic complexity -- or, how we can use some techniques we are building to revolutionize how we can think about modern industrial policy. This time: how can animal bones serve as an input into vacuum pumps? There are many paths along a knowledge graph.
November 7, 2025 at 3:55 AM
Today in economic complexity -- or, how we can use some techniques we are building to revolutionize how we can think about modern industrial policy. This time: how can animal bones serve as an input into vacuum pumps? There are many paths along a knowledge graph.
Reposted by Arthur Katossky
Toyota just demoed a personal mobility chair that literally walks—up stairs, sideways, and into a car.
Meet “walk me”: a four-legged, stair-climbing, height-adjustable mobility device aimed at seniors and people with limited mobility.
Meet “walk me”: a four-legged, stair-climbing, height-adjustable mobility device aimed at seniors and people with limited mobility.
November 5, 2025 at 4:53 PM
Toyota just demoed a personal mobility chair that literally walks—up stairs, sideways, and into a car.
Meet “walk me”: a four-legged, stair-climbing, height-adjustable mobility device aimed at seniors and people with limited mobility.
Meet “walk me”: a four-legged, stair-climbing, height-adjustable mobility device aimed at seniors and people with limited mobility.
Reposted by Arthur Katossky
A single call to function graph2ppt or graph2doc from the {export} package will produce fully editable graphs in PowerPoint and Word, respectively. Easy! Works with base, ggplot...
cran.r-project.org/web/packages... #rstats
cran.r-project.org/web/packages... #rstats
export: Streamlined Export of Graphs and Data Tables
Easily export 'R' graphs and statistical output to 'Microsoft Office' / 'LibreOffice', 'Latex' and 'HTML' Documents, using sensible defaults that result in publication-quality output with simple, stra...
cran.r-project.org
November 5, 2025 at 10:52 AM
A single call to function graph2ppt or graph2doc from the {export} package will produce fully editable graphs in PowerPoint and Word, respectively. Easy! Works with base, ggplot...
cran.r-project.org/web/packages... #rstats
cran.r-project.org/web/packages... #rstats
Reposted by Arthur Katossky
How to fit a model without estimating any parameters?
Use a formula with
y ~ 0 + offset(...)
This works with any formula interface, and with #tidymodels this can be passed to add_model().
#rstats
Use a formula with
y ~ 0 + offset(...)
This works with any formula interface, and with #tidymodels this can be passed to add_model().
#rstats
November 5, 2025 at 10:56 AM
How to fit a model without estimating any parameters?
Use a formula with
y ~ 0 + offset(...)
This works with any formula interface, and with #tidymodels this can be passed to add_model().
#rstats
Use a formula with
y ~ 0 + offset(...)
This works with any formula interface, and with #tidymodels this can be passed to add_model().
#rstats
Reposted by Arthur Katossky
Distance uphill and a distance downhill should be measured in asymmetric effort.
November 5, 2025 at 6:01 AM
Distance uphill and a distance downhill should be measured in asymmetric effort.
Reposted by Arthur Katossky
L'an dernier, les dépenses de recours aux cabinets conseil ont augmenté de 8% (et pas 31%, comme l'affirment ceux qui confondent AE et CP).
Si on compare à 2022, la baisse est de 40%. Mais les cabinets fontt de la résistance dans certains ministères et directions
www.lalettre.fr/fr/politique...
Si on compare à 2022, la baisse est de 40%. Mais les cabinets fontt de la résistance dans certains ministères et directions
www.lalettre.fr/fr/politique...
Cabinets de conseil : la direction de la haute fonction publique peine à freiner ses dépenses - LA LETTRE
Si le recours par l'État aux cabinets de conseil a fortement reculé depuis l'affaire McKinsey, certains ministères et les services du premier ministre continuent toutefois de solliciter les conseils
www.lalettre.fr
October 29, 2025 at 6:23 AM
L'an dernier, les dépenses de recours aux cabinets conseil ont augmenté de 8% (et pas 31%, comme l'affirment ceux qui confondent AE et CP).
Si on compare à 2022, la baisse est de 40%. Mais les cabinets fontt de la résistance dans certains ministères et directions
www.lalettre.fr/fr/politique...
Si on compare à 2022, la baisse est de 40%. Mais les cabinets fontt de la résistance dans certains ministères et directions
www.lalettre.fr/fr/politique...
Reposted by Arthur Katossky
Qualitative information design: don't underestimate how much you can design with only text!
1/8
1/8
October 28, 2025 at 2:26 PM
Qualitative information design: don't underestimate how much you can design with only text!
1/8
1/8
Reposted by Arthur Katossky
Vietnam is a massive positive outlier on international school tests riseprogramme.org/node/141.html
Striking that its also a large outlier in how valued teachers feel by both parents and policymakers
(From the latest TALIS survey published earlier this month
www.oecd.org/en/publicati...)
Striking that its also a large outlier in how valued teachers feel by both parents and policymakers
(From the latest TALIS survey published earlier this month
www.oecd.org/en/publicati...)
October 22, 2025 at 10:28 PM
Vietnam is a massive positive outlier on international school tests riseprogramme.org/node/141.html
Striking that its also a large outlier in how valued teachers feel by both parents and policymakers
(From the latest TALIS survey published earlier this month
www.oecd.org/en/publicati...)
Striking that its also a large outlier in how valued teachers feel by both parents and policymakers
(From the latest TALIS survey published earlier this month
www.oecd.org/en/publicati...)
Reposted by Arthur Katossky
Dozens of new ocean methane seeps have recently been discovered. This is not factored in current climate scenarios
www.nature.com/articles/s41...
www.nature.com/articles/s41...
October 20, 2025 at 7:51 PM
Dozens of new ocean methane seeps have recently been discovered. This is not factored in current climate scenarios
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Arthur Katossky
Cette stat est folle : "61% des usagers rencontrent des difficultés avec leurs démarches administratives, contre 39% il y a 8 ans"
On voit là l'effet de la numérisation et du manque de considération assez sérieuse pour l'illectronisme total ou partiel. www.bfmtv.com/economie/eco...
On voit là l'effet de la numérisation et du manque de considération assez sérieuse pour l'illectronisme total ou partiel. www.bfmtv.com/economie/eco...
De plus en plus d'usagers galèrent dans leurs démarches administratives (61% contre 39% il y a 8 ans) et un quart abandonne
61% des usagers rencontrent des difficultés avec leurs démarches administratives, contre 39% il y a 8 ans, selon une enquête du Défenseur des droits (DDD). L'étude pointe des "fractures persistantes" ...
www.bfmtv.com
October 13, 2025 at 1:12 PM
Cette stat est folle : "61% des usagers rencontrent des difficultés avec leurs démarches administratives, contre 39% il y a 8 ans"
On voit là l'effet de la numérisation et du manque de considération assez sérieuse pour l'illectronisme total ou partiel. www.bfmtv.com/economie/eco...
On voit là l'effet de la numérisation et du manque de considération assez sérieuse pour l'illectronisme total ou partiel. www.bfmtv.com/economie/eco...