R-bloggers - Part 40

FAIR standards for the creation of research materials, with examples

November 1, 2023 | R on Pablo Bernabeu

Notwithstanding the need for speed in most scientific projects, what should be the minimum acceptable standards in the creation of research materials such as stimuli, custom software for data collection (e.g., experiment in jsPsych, OpenSesame or psychoPy), or scripts for statistical analysis? The answer to this question is contingent ... [Read more...]

Calculating Number Needed to Treat/Harm (NNT/H) with Odds Ratio

November 1, 2023 | r on Everyday Is A School Day

We learned how to convert the pooled odds ratio from a random-effects model and subsequently calculate the number needed to treat (NNT) or harm (NNH). It’s important to understand that without knowing the event proportions in either the treatment or c...

Kriging with metR

November 1, 2023 | Code R

Say you have data measured at different weather stations, which in Argentina might look something like this estaciones[data, on = c("nombre" = "station")] |__ ggplot(aes(lon, lat)) + geom_point(aes(color = t)) + geom_...

Designed experiments with replicates: Principal components or Canonical Variates?

November 1, 2023 | R on The broken bridge between biologists and statisticians

A few days ago, a colleague of mine wanted to hear my opinion about what multivariate method would be the best for a randomised field experiment with replicates. We had a nice discussion and I thought that such a case-study might be generally intere...

Lesser-known reasons to prefer apply() over for loops

November 1, 2023 | Hugo Gruson

The debate regarding the use of for loops versus the apply() function family (apply(), lapply(), vapply(), etc., along with their purrr counterparts: map(), map2(), map_lgl(), map_chr(), etc.), has been a longstanding one in the R community. Whi... [Read more...]

Lynx from GBIF

November 1, 2023 | Michael

Lynx – CC-BY-NC-ND by Zweer de Bruin Day 1 of 30DayMapChallenge: « Points » (previously). Using data from GBIF to map species presence points. # Register an account on https://www.gbif.org # and save the credentials in ~/.Renviron...

Understanding the Triangular Distribution and Its Application in R

October 31, 2023 | Steven P. Sanderson II, MPH

Introduction As an R programmer and enthusiast, I’m excited to delve into the fascinating world of probability distributions. One of the lesser-known but incredibly useful distributions is the Triangular Distribution, and today we’ll explore wha... [Read more...]

Combining Histogram and Density Plot

October 31, 2023 | R | Fahim Ahmad

Visualization is fundamental in gaining insights and understanding the data, yet selecting an appropriate visualization method can often pose a challenge. In this blog post, I explore combining a histogram (showing the frequency of values of the conti...

Reading notes on Git in Practice by Mike McQuaid

October 31, 2023 | Maëlle's R blog on Maëlle Salmon's personal website

While preparing materials for teaching Git a few months ago, I re-read Suzan Baert’s excellent post about Git and GitHub, where she mentioned having read “Git in Practice” by Mike McQuaid. I added the book to my Momox alerts, where it... [Read more...]

Harnessing AI in R and Python – Gather data with ChatGPT

October 31, 2023 | Ponne, Bruno

AI in R and Python Greetings, humanists, social and data scientists! Welcome to this enlightening journey to extract historical data from the Web using AI! In this lesson, we delve into the innovative ways of harnessing the power of ChatGPT to ...

Geocode address text strings using tidygeocoder

October 31, 2023 | Ilya Kashnitsky

Deriving coordinates from a string of text that represents a physical location on Earth is a common geo data processing task. A usual use case would be an address question in a survey. There is a way to automate queries to a special GIS service so th...

R Quixote in Spain: Organizing Annual R Conference and Writing Book for Hispanic R Users

October 31, 2023 | R Consortium

The R Consortium recently had the opportunity to talk to Isidro Hidalgo Arellano and Gema Fernández-Avilés Calderón of the R Quixote user group in Spain. They discussed the R for... The post R Quixote in Spain: Organizing Annual R Conference and Writing Book for Hispanic R Users ...

New Online Course: Geospatial Data Science with R

October 31, 2023 | XP Song

I’m very excited to announce that I have released a new online course ‘Geospatial Data Science with R’ on Udemy! As part of the opening offer, the first 100 sign-ups will have FREE lifetime access at the following link. Claim yours today: bit.ly/...

New Online Course: Geospatial Data Science with R

October 31, 2023 | XP Song

I’m very excited to announce that I have released a new online course ‘Geospatial Data Science with R’ on Udemy! As part of the opening offer, the first 100 sign-ups will have FREE lifetime access at the following link. Claim yours today: bit.ly/...

Remove Solar System

October 31, 2023 | Numbers around us

Excel BI’s Excel Challenge #315 — solved in RDefining the Puzzle:Unlike title suggests, today our task is not to manipulate planets, but to remove from our target texts all characters that are in the Solar System planets and Sun.Remove the English lett...

Cypher and turn around- Atbash palindrome

October 31, 2023 | Numbers around us

Excel BI’s Excel Challenge #314 — solved in RDefining the Puzzle:This puzzle is searching Atbash Palindrome.ATBASH Palindrome — In ATBASH cipher, we replace a with z, b with y, c with x…..y with b, z with a.Find those texts which are palindrome after d...

Cummulate and concatenate

October 31, 2023 | Numbers around us

Excel BI’s Excel Challenge #313 — solved in RDefining the Puzzle:Today we need to transform table into its cummulative (someway) version. Every column have to include content of column lagged by 2.Generate the result table.Here, Tn = T(n-2) & Tn wh...

Sumproduct number

October 31, 2023 | Numbers around us

Excel BI’s Excel Challenge #312 — solved in RDefining the Puzzle:In current puzzle we need to check if digits of our numbers has some magic properties. Seems easy, but it is not usually the case, when ExcelBI prepare riddle.List all Sumproduct numbers ...

Multinomial Distribution in R

October 30, 2023 | Steven P. Sanderson II, MPH

Introduction The multinomial distribution is a probability distribution that describes the probability of obtaining a specific number of counts for k different outcomes, when each outcome has a fixed probability of occurring. In R, we can use th... [Read more...]

Randomness in R: runif(), punif(), dunif(), and quinf()

October 29, 2023 | Steven P. Sanderson II, MPH

Introduction Randomness is an essential part of many statistical and machine learning tasks. In R, there are a number of functions that can be used to generate random numbers, but the runif() function is the most commonly used. The runif() func...

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