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R-bloggers

R news and tutorials contributed by hundreds of R bloggers

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Distribution of p-values under the null hypothesis...

R-bloggers ·

2025/11/08

MotivationA few months back in a side skirmish during the great p-curve controversy, Richard McElreath mentioned that p-values under the null hypothesis are not always uniformly distributed, as is sometimes claimed. This prompted me to check out the ... Continue reading: Distribution of p-values under the null hypothesis for discrete data by @ellis2013nz

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Urban

R-bloggers ·

2025/11/08

Sunset over Rouen, Normandy, France – Public domain by Pierre Blaché Day 8 of 30DayMapChallenge: « Urban » (previously). French Urban unit database from INSEE. The concept of an urban unit is based on continuous built-up ar... Continue reading: Urban

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Inaccessibility

R-bloggers ·

2025/11/07

IMG_9811 – CC-BY-NC by Eddie Lawrance Day 7 of 30DayMapChallenge: « Accessibility » (previously). Well, let us be rebellious and instead seek inaccessibility; more precisely the pole of inaccessibility of France (the Hexagon... Continue reading: Inaccessibility

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Free AI and Data Courses with 365 Data...

R-bloggers ·

2025/11/06

365 Data Science opens its doors this November 100% for free! From November 6 to November 21, 2025 (8 a.m. UTC), enjoy unlimited access to the entire platform, including a wide range of R programming courses and projects. This offer features expert-led courses, practical projects, and interactive exercises covering diverse topics in AI and data … ... Continue reading: Free AI and Data Courses with 365 Data Science—Unlimited Access until Nov. 21

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Mamdani vs Sliwa and Cuomo

R-bloggers ·

2025/11/06

Mamdani’s victory in the New York City mayoral election gave me the opportunity to draw a few maps, and also to learn a bit about incorporating additional spatial data into maps drawn in R. R is not a specialized piece of GIS software. ESRI&rsquo... Continue reading: Mamdani vs Sliwa and Cuomo

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Dimension reduction

R-bloggers ·

2025/11/06

Floura - Light Bloom - The Art of Hybycozo - Desert Botanical Garden – CC-BY-NC by Alan English CPA Day 6 of 30DayMapChallenge: « Dimensions » (previously). According to Wikipedia, Uniform manifold approximation and projecti... Continue reading: Dimension reduction

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Graceful Internet Packages

R-bloggers ·

2025/11/06

How to join this free online event with Salix Dubois, Tan Ho and Matthias Grenié. Join us for our next Community Call, “Graceful Internet Packages,” featuring Matthias, Tan, and Salix. In this session, we’ll explore how to design and maintain R packag... Continue reading: Graceful Internet Packages

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Computo – A Journal for Transparent and Reproducible...

R-bloggers ·

2025/11/06

Computo is a journal promoting methodological, computational, and algorithmic contributions in statistics and machine learning that provide a better understanding of which models or methods are most appropriate to answer specific scientific questio... Continue reading: Computo – A Journal for Transparent and Reproducible Research in Statistics and Machine Learning

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A Gentle Introduction to Mathematical Simulation in R...

R-bloggers ·

2025/11/05

Join our workshop on A Gentle Introduction to Mathematical Simulation in R, which is a part of our workshops for Ukraine series! Here’s some more info: Title:A Gentle Introduction to Mathematical Simulation in R Date: Thursday, December 11th, 18:00 – 20:00 CET (Rome, Berlin, Paris timezone) Speaker: Damie Pak has a ... Continue reading: A Gentle Introduction to Mathematical Simulation in R workshop

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Reversed

R-bloggers ·

2025/11/05

Calvi - Noël 2017 – CC-BY-NC-NA by Valerie Hukalo Day 5 of 30DayMapChallenge: « Earth » (previously). What if the bathymetry of the Mediterranean Sea is reversed? We would get a Western Island and an Eastern Island, a Sardin... Continue reading: Reversed

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Faking plotly’s ‘y unified’ tooltip in ggiraph

R-bloggers ·

2025/11/05

Problem A ggiraph tooltip head scratcher (and the fix!) We settled on ggiraph as our interactive visualisation package for a new Shiny dashboard. The goal was simple: capture the Y-axis value, grouped by the X-axis to display in a tooltip when... Continue reading: Faking plotly’s ‘y unified’ tooltip in ggiraph

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Data centers

R-bloggers ·

2025/11/04

6509Es – CC-BY-NC by Bob Mical Day 4 of 30DayMapChallenge: « My data » (previously). Where are my data? Partly in a data center; probably with your data too… So, where are they? library(dplyr) library(purrr) library(sf) library(osmdata) library(glue) library(leaflet) We send an Overpass API query with {osmdata}: # Get ... Continue reading: Data centers

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simaerep release 1.0.0

R-bloggers ·

2025/11/04

Simulate patient-related events in clinical trials with the goal of detecting over and under-reporting sites. Monitoring reporting rates of patient-related events such as adverse events (AE) in clinical trials is important for patient safety. We u... Continue reading: simaerep release 1.0.0

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Highlights from Shiny in Production (2025)

R-bloggers ·

2025/11/03

This October, Jumping Rivers hosted the fourth installment of our conference “Shiny In Production”. This year, speakers from around the world joined us in Newcastle to see how Shiny, in both Python and R, has solved real data problems... Continue reading: Highlights from Shiny in Production (2025)

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maestro 0.7.0 introduces conditional pipelines

R-bloggers ·

2025/11/03

The 0.7.0 release of maestro is out, and with it is the ability to conditionally run pipelines. In a nutshell, this is especially useful when you have DAG pipelines and you want to branch or only execute parts of a DAG when the output meets a pa... Continue reading: maestro 0.7.0 introduces conditional pipelines

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Behavior-Driven Development in R Shiny: Setting Up...

R-bloggers ·

2025/11/03

Learn how to set up test preconditions in Shiny BDD using Given steps. Master dependency injection, test doubles, and composable setup patterns for reliable R testing. Continue reading: Behavior-Driven Development in R Shiny: Setting Up Test Preconditions with Given Steps

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An Introduction to Writing Your Own ggplot2 Geoms

R-bloggers ·

2025/11/03

If you use ggplot2, you are probably used to creating plots with geom_line() and geom_point(). You may also have ventured into to the broader ggplot2 ecosystem to use geoms like geom_density_ridges() from ggridges or geom_signif() from ggsignif. But have you ever wondered how these extensions ... Continue reading: An Introduction to Writing Your Own ggplot2 Geoms

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Country codes

R-bloggers ·

2025/11/02

Physicists of many nations – CC BY-NC-ND by Ann FisherDay 3 of 30DayMapChallenge: « Polygons » (previously). An interesting challenge a few weeks ago on https://en.osm.town/@opencage/115271196316302891: Post by @opencage@en.osm.town View on Mastodon Name countries whose ISO 3166-1 alpha-2 code is contained as a substring in the ... Continue reading: Country codes

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Little useless-useful R functions – Useless Pyramid...

R-bloggers ·

2025/11/02

What motivates human behaviour can be captured in the Maslow’s hierarchy of needs (source: Wiki). Maslow and psychologists have articulated these needs in a form of a Pyramid, and ever since the concept had been widely adopted (also criticised), and…Read more › Continue reading: Little useless-useful R functions – Useless Pyramid of R needs

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Ridgelines

R-bloggers ·

2025/11/01

Hiking Path – CC BY-NC-SA by HD Day 2 of 30DayMapChallenge: « Lines » (previously). Representing a digital elevation model as ridgelines… Config library(elevatr) library(rnaturalearth) # remotes::install_github("ropensci/r... Continue reading: Ridgelines

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1,317 results