2022

{rspm}: easy access to RSPM binary packages with automatic management of system requirements

July 26, 2022 | Iñaki Úcar

There are many community projects out there that provide binary R packages for various distributions. You may know Michael Rutter’s legendary c2d4u.team/c2d4u4.0+ PPA, but this situation has been greatly improved more recently with Detlef Steuer’s autoCRAN OBS repo for OpenSUSE, my iucar/... [Read more...]

Comments on the New R OOP System, R7

July 26, 2022 | matloff

Object-Oriented Programming (OOP) is more than just a programming style; it’s a philosophy. R has offered various forms of OOP, starting with S3, then (among others) S4, reference classes, and R6, and now R7. The latter has been under development by a team broadly drawn from the R community ... [Read more...]

New Package yfR

July 25, 2022 | rOpenSci - open tools for open science

Package yfR recently passed peer review at rOpenSci and is all about downloading stock price data from Yahoo Finance (YF). I wrote this package to solve a particular problem I had as a teacher: I needed a large volume of clean stock price data to use in my classes, either ... [Read more...]

Efficient list recursion in R with {rrapply}

July 25, 2022 | R-bloggers | A Random Walk

Introduction The nested list below shows a small extract from the Mathematics Genealogy Project highlighting the advisor/student genealogy of several famous mathematicians. The mathematician’s given names are present in the "given" attribute of each list element. The numeric values at the leaf elements are the total number of ...

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Interview with Ehouman Evans – Experience with R and Use with Agroforestry in Cotonou, West Africa

July 25, 2022 | R Consortium

View the full interview: https://www.youtube.com/watch?v=4yW5TRZslj8 Ehouman Evans (Ph.D.), Agroforestry Project Manager at CIRAD, gives an interview to the R Consortium about his journey with R, his career, how he’s applied... The post Interview with Ehouman Evans – Experience with R and Use ...

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Simulating Turnout in Tunisia’s Constitutional Referendum

July 25, 2022 | R on Robert Kubinec

I am writing this post in response to questions about estimating turnout for Tunisia’s constitutional referendum today. Turnout is an important aspect to this referendum because high turnout would signal higher legitimacy for President Kais Saied’s... [Read more...]

rstudio::conf(2022) Starts Today!

July 24, 2022 | RStudio | Open source & professional software for data science teams on RStudio

The day you’ve been waiting for is here: rstudio::conf(2022) starts today! We hope you’re ready for four days, 16 workshops, four keynotes, and countless ways to learn and collaborate! With so much happening, we wanted to give an overview of what to ex... [Read more...]

How to invoke an AWS Lambda function with R and paws

July 23, 2022 | R | Discindo

In recent weeks, I have been trying to learn more about using the {paws} software development kit to interact with Amazon Web Services from R. So far, my focus was on the basics of DynamoDB. How to put one item in the database, and how to migrate reasonably sized table ... [Read more...]

Programming a simple minimax chess engine in R

July 22, 2022 | R programming tutorials and exercises for data science and mathematics

Why write a chess engine in R? Chess has always fascinated me. This is a game with simple rules that takes a lot of practice to master. No information is hidden from the players: the game state is clearly visible on the board, but strategie...

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What’s the fastest way to search and replace strings in a data frame?

July 22, 2022 | Econometrics and Free Software

I’ve tweeted this: Just changed like 100 grepl calls to stringi::stri_detect and my pipeline now runs 4 times faster #RStats — Bruno Rodrigues (@brodriguesco) July 20, 2022 much discussed ensued. Some people were surprised, because in their ...

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Unhappy in its Own Way

July 22, 2022 | R on kieranhealy.org

“Happy families are all alike; every unhappy family is unhappy in its own way” runs the opening sentence of Anna Karenina. Hadley Wickham echoes the sentiment in a somewhat different context: “Tidy datasets are all alike, but every messy dataset is messy in its own way”. Data analysis is mostly ... [Read more...]

R code snippet : Transform from long format to wide format

July 22, 2022 | sang-heon lee

This post introduces a useful R code snippet for transforming the long format data to the wide format. We occasionally encounter the long format data such as yield curve data since yield curve has two dimensions : maturity and date. For this e...

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Read Data from Multiple Excel Sheets and Convert them to Individual Data Frames

July 21, 2022 | R | Fahim Ahmad

Step 1: Reading data using lapply( ) using map ( ) Step 2: Converting the list of data frames into individual data frames using lapply( ) using map( ) I work with a team of data enthusiasts where we deal with a large amount of data every single ... [Read more...]

A Kaggle Dataset of R Package History for rstudio::conf(2022)

July 21, 2022 | R on head spin - the Heads or Tails blog

It’s summer, and the long-awaited Rstudio conference for 2022 is only days away. Next week, a large number of R aficionados will gather in Washington DC for the first time in person since the beginning of the pandemic. A pandemic, mind you, that is far from over. But Covid precautions ...

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rOpenSci News Digest, July 2022

July 21, 2022 | rOpenSci - open tools for open science

Dear rOpenSci friends, it’s time for our monthly news roundup! You can read this post on our blog. Now let’s dive into the activity at and around rOpenSci! rOpenSci HQ rOpenSci Code of Conduct update We are pleased to announce the rele... [Read more...]

Convert multiple columns into a single column-tidyr Part4

July 21, 2022 | Jim

The post Convert multiple columns into a single column-tidyr Part4 appeared first on Data Science Tutorials Convert multiple columns into a single column, To combine numerous data frame columns into one column, use the union() function from the tidyr package. Convert multiple columns into a single column The basic syntax ... [Read more...]

Developer diary for {ggshakeR} 0.2.0 (a package for soccer analytics viz): Working smoothly as a team on GitHub for R package development!

July 21, 2022 | R by R(yo)

{ggshakeR} 0.2.0, a package for soccer analytics visualizations for R is released! This version brings a huge amount of new functionality as well as changes to existing functions. devtools::install_github("abhiamishra/ggshakeR") ... [Read more...]

Systematic error messages

July 21, 2022 | jonathanscallahan

Anyone writing code for use in data processing systems needs to have a well thought-out protocol for generating error messages and logs. When a complex pipeline breaks, good logs and recognizable error messages are key to debugging the problem. This post describes improvements to the MazamaCoreUtils package that help you ... [Read more...]

Join rstudio::conf(2022) Virtually

July 21, 2022 | RStudio | Open source & professional software for data science teams on RStudio

While we hope to see you in person at rstudio::conf(2022), we want to include as many of you as possible, so we invite you to join us virtually! Live streaming: Keynotes and talks will be livestreamed on the rstudio::conf website, free and open to all...

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Best Books for Data Engineers

July 21, 2022 | finnstats

The post Best Books for Data Engineers appeared first on finnstats. If you are interested to learn more about data science, you can find more articles here finnstats. Best Books for Data Engineers, Are you seeking the best books on data engineering? If so, your quest is over here. We’...

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2022

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