R-bloggers

Distribution of p-values under the null hypothesis for discrete data by @ellis2013nz

November 8, 2025 | free range statistics - R

Motivation A 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 ...

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Urban

November 8, 2025 | Michael

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...

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Inaccessibility

November 7, 2025 | Michael

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...

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Free AI and Data Courses with 365 Data Science—Unlimited Access until Nov. 21

November 6, 2025 | neddd

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 … ... [Read more...]

Mamdani vs Sliwa and Cuomo

November 6, 2025 | R on kieranhealy.org

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... [Read more...]

Dimension reduction

November 6, 2025 | Michael

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...

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Computo – A Journal for Transparent and Reproducible Research in Statistics and Machine Learning

November 5, 2025 | rOpenSci - open tools for open science

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... [Read more...]

Graceful Internet Packages

November 5, 2025 | rOpenSci - open tools for open science

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...

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A Gentle Introduction to Mathematical Simulation in R workshop

November 5, 2025 | Dariia Mykhailyshyna

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 ... [Read more...]

Reversed

November 5, 2025 | Michael

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...

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Faking plotly’s ‘y unified’ tooltip in ggiraph

November 4, 2025 | Author: Kurtis Smith

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... [Read more...]

Data centers

November 4, 2025 | Michael

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 ...

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simaerep release 1.0.0

November 3, 2025 | R on datistics

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...

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Highlights from Shiny in Production (2025)

November 3, 2025 | The Jumping Rivers Blog

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...

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maestro 0.7.0 introduces conditional pipelines

November 2, 2025 | Will Hipson

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... [Read more...]

Behavior-Driven Development in R Shiny: Setting Up Test Preconditions with Given Steps

November 2, 2025 | jakub::sobolewski

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. [Read more...]

An Introduction to Writing Your Own ggplot2 Geoms

November 2, 2025 | Isabella Velásquez

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 ...

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Country codes

November 2, 2025 | Michael

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

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Little useless-useful R functions – Useless Pyramid of R needs

November 2, 2025 | tomaztsql

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 ›

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Ridgelines

November 1, 2025 | Michael

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...

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