2022

RQuantLib 0.4.16 on CRAN: Small Updates

May 5, 2022 | Thinking inside the box

A new release 0.4.16 of RQuantLib arrived at CRAN earlier today, and has been uploaded to Debian as well. QuantLib is a very comprehensice free/open-source library for quantitative finance; RQuantLib connects it to the R environment and language. The... [Read more...]

Analyze your Twitter timeline with {rtweet} and {lubridate}

May 5, 2022 | Albert Rapp

This week, I am oddly proud to announce that I have reached 1000 followers on Twitter. Check out the visualization that I have created for this joyous occasion. To me, my rising follower count and the somewhat regular mails that I receive are a sign that people like to read my ...

[Read more...]

The link between Food Hygiene Ratings and Deprivation

May 5, 2022 | The Jumping Rivers Blog

Introduction If you’ve ever visited any food establishment in England & Wales, you’ve probably noticed the green labels somewhere on the outside with a Food Hygiene Rating from 0-5 on it. If y...

[Read more...]

Mastering Git and GitHub: the hands-on workshop

May 5, 2022 | Mirai Solutions

On 25/05 learn the basis of version control via a hands-on 3.5-hours workshop using command line, R, RStudio or a web browser. Have you ever feared to mess up your code, to lose your development or to spend endless time to integrate a collaborator’s ...

[Read more...]

The basics of prototyping and exporting your plots in R

May 5, 2022 | R on R (for ecology)

It’s super rewarding when you finally figure out how to plot and visualize your data. But to show off your plot to the rest of the world, you need to first be able to save and export it from your R Studio workspace. In this tutorial, I’m go...

[Read more...]

The Success Paradox: Why even a little Bit of Luck often beats Skill

May 5, 2022 | Learning Machines

The skill-vs-luck debate never ceases to fascinate. Is it mainly skill, experience, hard work, and the “right” mindset that determines who is becoming successful, rich, or famous, or is it largely luck and fortunate circumstances? In this post, we will conduct an illuminating simulation to show that even a small ... [Read more...]

A short note on the startsWith function

May 4, 2022 | kjytay

The startsWith function comes with base R, and determines whether entries of an input start with a given prefix. (The endsWith function does the same thing but for suffixes.) The following code checks if each of “ant”, “banana” and “balloon” … Continue reading → [Read more...]

Matrix population models: Lecture slides and R codes for a workshop

May 3, 2022 | R | Olivier Gimenez

Happy to share lecture slides & R codes of an earlier version of the workshop 👇 we ran back in 2014 🤯 w JD Lebreton & @KoonsLab ➡️ https://t.co/XdcCQ560Pz #RStats For video 📽️📺, check out our workshop on pop dynamics https://t.co/jlTE4iF5zk w @... [Read more...]

RStudio Community Monthly Events Roundup – May 2022

May 3, 2022 | RStudio | Open source & professional software for data science teams on RStudio

Photo by Nick Morrison on Unsplash Welcome to RStudio Community Monthly Events Roundup, where we update you on upcoming virtual events happening at RStudio this month. Missed the great talks and presentations from last month? Find them listed under I... [Read more...]

Storytelling in ggplot using rounded rectangles

May 3, 2022 | Albert Rapp

A standard ggplot output can rarely convey a powerful message. For effective data visualization you need to customize your plot. A couple of weeks ago, I showed you how. In this blog post, I will rebuild another great data viz from scratch. If you have read my original blog post, ...

[Read more...]

truncated mixtures

May 3, 2022 | xi'an

A question on X validated about EM steps for a truncated Normal mixture led me to ponder whether or not a more ambitious completion [more ambitious than the standard component allocation] was appropriate. Namely, if the mixture is truncated to the interval (a,b), with an observed sample x of ...

[Read more...]

{fusen} v0.4 – 14 developers tips and tricks

May 3, 2022 | Sébastien Rochette

You can read the original post in its original format on Rtask website by ThinkR here: {fusen} v0.4 – 14 developers tips and tricks If you think {fusen} is not for you because you’ve been building R packages your entire life without it, it’s time to give it a try! ...

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Carry and Roll-Down on a Yield Curve using R code

May 3, 2022 | sang-heon lee

This post shows how to calculate a carry and roll-down on a yield curve using R. In the fixed income, the carry is a current YTM like a dividend yield in stock. But unlike stocks, even though market conditions remain constant over time, the r...

[Read more...]

Announcing R/Medicine 2022!

May 3, 2022 | R Consortium

Announcing R/Medicine 2022! The conference will be fully virtual from August 23 through 26 and feature two days of workshops (included with the low registration fee!) and two days of keynotes featuring... The post Announcing R/Medicine 2022! appeared first on R Consortium.

[Read more...]

Data Cleaning in R: 2 R Packages to Clean and Validate Datasets

May 3, 2022 | Dario Radečić

Real-world datasets are messy. Unless the dataset was created for teaching purposes, it’s likely you’ll have to spend hours or even tens of hours cleaning it before you can show it on a dashboard. That’s where two packages for data cleaning in R come into play – janitor ...

[Read more...]

Introducing LearnPCA

May 3, 2022 | Chemometrics and Spectroscopy Using R

PCA, or principal components analysis, is one of the most wide-spread statistical methods in use. It shows up in many disciplines, from political science and psychology, to chemistry and biology. PCA is also really challenging to understand. I’m pleased to announce that my colleague David Harvey and I have ... [Read more...]

ML for the Lazy: Can AutoML Beat My Model?

May 2, 2022 | R | JLaw's R Blog

In this fourth (and hopefully final) entry in my “Icing the Kicker” series of posts, I’m going to jump back to the first post where I used tidymodels to predict whether or not a kick attempt would be iced. However, this time I see if using the h2o ...

[Read more...]

New Workshops Series Kick-off

May 2, 2022 | Mirai Solutions

We are happy to announce our fourth series of workshops, to take place in 2022. After the success of the past series that took place at the end of last year we decided to offer again a series of workshops based on best development practices, R progra...

[Read more...]

Announcing Sitewide Search on rstudio.com

May 1, 2022 | RStudio | Open source & professional software for data science teams on RStudio

Photo by Markus Winkler on Unsplash Sarah Lin is RStudio's Enterprise Information Manager. As many RStudio customers & open-source users know, we have a lot of websites. Historically, as the company grew, each department created its own website(... [Read more...]

Little useless-useful R functions – Finding total sum of all sub-arrays and sum of maximums

May 1, 2022 | tomaztsql

When it comes to O(N log(N)) time complexity functions, this is the right section. 🙂 Given an array of natural numbers (later, you will see, it can be real, or any other less complex system (rational, irrational)) and you create…Read more ›

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R-bloggers

R news and tutorials contributed by hundreds of R bloggers

2022

RQuantLib 0.4.16 on CRAN: Small Updates

Analyze your Twitter timeline with {rtweet} and {lubridate}

The link between Food Hygiene Ratings and Deprivation

Mastering Git and GitHub: the hands-on workshop

The basics of prototyping and exporting your plots in R

The Success Paradox: Why even a little Bit of Luck often beats Skill

A short note on the startsWith function

Matrix population models: Lecture slides and R codes for a workshop

RStudio Community Monthly Events Roundup – May 2022

Storytelling in ggplot using rounded rectangles

truncated mixtures

{fusen} v0.4 – 14 developers tips and tricks

Carry and Roll-Down on a Yield Curve using R code

Announcing R/Medicine 2022!

Data Cleaning in R: 2 R Packages to Clean and Validate Datasets

Introducing LearnPCA

ML for the Lazy: Can AutoML Beat My Model?

New Workshops Series Kick-off

Announcing Sitewide Search on rstudio.com

Little useless-useful R functions – Finding total sum of all sub-arrays and sum of maximums

2022

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