R-bloggers - Part 32

Snakes and ladders by @ellis2013nz

August 9, 2024 | free range statistics - R

More than five years ago I started a series of posts on games of chance and for one reason or another never got around to finishing them. Partially redressing that, here is a long-lost and now tidied up post on Snakes and Ladders. Read it before you ne...

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Tableau in R for $0 (Introducing GWalkR)

August 9, 2024 | Business Science

Hey guys, welcome back to my R-tips newsletter. Today I’m introducing GWalkR: An R package for Exploratory Data Analysis in 1 line of code. Just like Tableau. But Costs $0 (100% free). Let’s go! Table of Contents Here’s what you’re learning today: ...

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The deep rabbit hole of DIY small ergonomic keyboards

August 8, 2024 | Alexej Gossmann

The following poem, created using Google Gemini AI :robot:, chronicles my journey into the world of ergonomic DIY keyboards. It documents my (evolving) preferences and opinions, as well as a curated list of resources that I have found useful over the last three years. :keyboard: Warning :keyboard: The following verses ...

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Mastering Character Counting in R: Base R, stringr, and stringi

August 8, 2024 | Steven P. Sanderson II, MPH

Introduction Counting the occurrences of a specific character within a string is a common task in data processing and text manipulation. Whether you’re working with base R or leveraging the power of packages like stringr or stringi, R provides ... [Read more...]

Exploring Key Social, Economic, Environmental, and Institutional Indicators

August 8, 2024 | R | Fahim Ahmad

I developed this dashboard to allow users to explore and compare key social, economic, environmental, and institutional indicators for different countries. Users can select one or more countries and retrieve the most recent data on these indicators fr...

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Shiny in Production 2024: Full speaker lineup

August 8, 2024 | The Jumping Rivers Blog

We are pleased to announce the full line-up for this year’s Shiny in Production conference! This year, we’re introducing a new lightning talk session. These short 5 minute talks will allow us to showcase many more uses of Shiny in Production. The conference will still feature 6 full length talks, ...

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How to Check if a String Contains Specific Characters in R: A Comprehensive Guide with Base R, string & stringi

August 7, 2024 | Steven P. Sanderson II, MPH

Introduction Welcome to another exciting blog post where we walk into the world of R programming. Today, we’re going to explore how to check if a string contains specific characters using three different approaches: base R, stringr, and stringi... [Read more...]

PowerQuery Puzzle solved with R

August 7, 2024 | Numbers around us

#201–206PuzzlesAuthor: ExcelBIAll files (xlsx with puzzle and R with solution) for each and every puzzle are available on my Github. Enjoy.Puzzle #201We need to find out which customer had opportunity to buy specific product (and maybe bought). We rece...

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Black Monday Crash

August 7, 2024 | Selcuk Disci

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

August 6, 2024 | Steven P. Sanderson II, MPH

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...

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R Solution for Excel Puzzles

August 6, 2024 | Numbers around us

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...

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Object Oriented Programming in R (Part 4): Reference Classes & R6 Classes

August 6, 2024 | Ryszard Szymański

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 ...

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Converting Text to Uppercase with toupper() in R

August 5, 2024 | Steven P. Sanderson II, MPH

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

August 5, 2024 | Lars Schöbitz

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...

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Git Tricks for Working with Large Repositories

August 5, 2024 | rOpenSci - open tools for open science

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

August 5, 2024 | Appsilon

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 ...

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Systematic Sampleing in R with Base R

August 4, 2024 | Steven P. Sanderson II, MPH

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...

$k = \frac{N}{n}$

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Auto XGBoost, Auto LighGBM, Auto CatBoost, Auto GradientBoosting

August 4, 2024 | T. Moudiki

Auto XGBoost, Auto LighGBM, Auto CatBoost, Auto GradientBoosting

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Calendar Plots With ggplot2

August 3, 2024 | Albert Rapp

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

August 3, 2024 | Albert Rapp

Load the tidyverse and take a look at our data library(tidyverse) flights

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