Black Monday Crash
The Bank of Japan has raised the interest rates and Nikkei has crushed the worst since the Black Monday crash of October 1987. The S&P 500 and DAX have declined similarly, but the DAX has performed slightly better. [Read more...]
Checking If a Workbook is Open Using VBA and Executing from R
Introduction
In the world of data analysis and automation, Excel and R are powerful tools that can work in tandem to streamline workflows. One common task is to check if a specific Excel workbook is open. This can be done using VBA (Visual Basi...
R Solution for Excel Puzzles
Puzzles no. 499–413PuzzlesAuthor: ExcelBIAll files (xlsx with puzzle and R with solution) for each and every puzzle are available on my Github. Enjoy.Puzzle #499Interesting numbers are pretty often in scope of our puzzles. Today we have Lynch-Bell Numb...
Object Oriented Programming in R (Part 4): Reference Classes & R6 Classes
In our last article, we explored the S4 OOP system in R. Up until this point, we had only discussed functional OOP systems in R. Today, we are going to learn about two encapsulated OOP systems available for R: Reference Classes – introduced to R in 2010 in version 2.12.0 (source). Sometimes also ...
Converting Text to Uppercase with toupper() in R
Introduction
Greetings, useR! Today, we’re exploring a handy function from base R that will help with string manipulation: toupper(). This little function is the complement to tolower() which I have previously written about. Let’s take a look!
... [Read more...]
openwashdata phase 2 proposal funded
Achievements in phase 1
The openwashdata community was established in March 2023 and received funding for an 18 month period. Since then, we have established a website for the openwashdata community that attracts 15 unique visitors dai...
Git Tricks for Working with Large Repositories
Recently Yanina Bellini Saibene reminded us
to update our Slack profile:
Friendly reminder: Let’s increase the value of our rOpenSci Slack community.
Please add details to your profile, e.g., your photo, your favorite social media
handle, what ... [Read more...]
How to Write Tests with shiny::testServer Similar to shinytest2
When developing R Shiny apps, making sure they work well and are reliable is important. Rigorous testing isn’t just about finding bugs; it’s about preventing them, saving time, and ensuring everything runs smoothly. We did the comparison of shinytest2 and Cypress. Check out this blog post to learn ...
Systematic Sampleing in R with Base R
Introduction
In this post, we will explore systematic sampling in R using base R functions. Systematic sampling is a technique where you select every (k^{th}) element from a list or dataset. This method is straightforward and useful when you wa...
Auto XGBoost, Auto LighGBM, Auto CatBoost, Auto GradientBoosting
Calendar Plots With ggplot2
library(tidyverse)
## ── Attaching core tidyverse packages ──────────────────────── tidyverse 2.0.0 ──
## ✔ dplyr 1.1.4 ✔ readr 2.1.5
## ✔ forcats 1.0.0 ✔ stringr 1.5.1
## ✔ ggplot2 3.5.1 ✔ tibble 3.2.1
## ✔ lubridate 1.9.3 ✔ tidyr 1.3.1
## ✔ purrr 1.0.2
## ── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ──
## ✖ dplyr::filter() masks stats::filter()
## ✖ dplyr::lag() masks stats::lag()
## ℹ Use the conflicted package () to force all conflicts to become errors
library(reactable)
counts
filter(!is.na(sex)) |__
dplyr::count(species, ... [Read more...]
Calendar Plots With ggplot2
CopenhagenR, the 2024 spring season
This is just a post to brag about that
the CopenhagenR useR group is alive and kicking, again.
After COVID-19, the group (like so many other meetups) was on hiatus for a couple of years and without an organizer. In 2023, I thought I would try sta... [Read more...]
{charcuterie} – What if Strings Were Iterable in R?
I’ve been using a lot of programming languages recently and they all have their
quirks, differentiating features, and unique qualities, but one thing most of
them have is that they handle strings as a collection of characters. R doesn’t,
it has a “character” type which is 0 or more ...
R Consortium Grants Committee Announces New Chair
The R Consortium is pleased to announce that Katherine Jeschke has been appointed Chair of the Grants Committee. She will oversee day-to-day grant processes for both pre- and post-awards, ensuring...
The post R Consortium Grants Committee Announces New Chair appeared first on R Consortium.
All You Need to Know About Rhino 1.8 and 1.9 Updates: A Fireside Chat
Rhino, the R package development framework created by Appsilon, has recently released two updates – versions 1.8 and 1.9. In this fireside chat, Kamil Żyła (one of the core developers of Rhino) and Marek Rogala (Appsilon’s Head of Technology) sit down to discuss these updates and the vision behind Rhino. Watch ...
Cluster Sampling in R: A Simple Guide
Introduction
Cluster sampling is a useful technique when dealing with large datasets spread across different groups or clusters. It involves dividing the population into clusters, randomly selecting some clusters, and then sampling all or some ... [Read more...]
Spatial analysis with geostan
Summary
Installation
From github
From CRAN
Getting started
Adjacency matrix
Non-spatial regression
MCMC output
Methods
Spatial regression
A filtering approach
A bivariate mode...
Pulling a Loose Thread on Pull()
Richard Layton recently shared a neat article: A subtle flaw in pull(). This is the usual loss of reliable programmable semantics just to avoid a few quote marks (at the cost of many more force eval and paste marks). It is well considered and well writ... [Read more...]
Pharma RUG: The Rise of R in China’s Pharmaceutical Industry
PharmaRUG, China organizer Joe Zhu, spoke with the R Consortium about the growing R community and the increasing use of R in the pharmaceutical industry in China. The group has...
The post Pharma RUG: The Rise of R in China’s Pharmaceutical Industry appeared first on R Consortium.
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