Feller’s coin-tossing puzzle: tidy simulation in R

[This article was first published on Variance Explained, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. Previously in this series: I have an interest in probability puzzles and … Read more Feller’s coin-tossing puzzle: tidy simulation in R

Introducing nse2r

[This article was first published on Rsquared Academy Blog, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. We are excited to announce the nse2r package. NSE (National Stock … Read more Introducing nse2r

Le Monde puzzle [#1127]

[This article was first published on R – Xi’an’s Og, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. A permutation challenge as Le weekly Monde current mathematical puzzle: … Read more Le Monde puzzle [#1127]

EARL London 2020 call for abstracts

We’re pleased to announce we have opened the call for EARL London 2020 abstracts! The Enterprise Applications of the R Language Conference is all about R and its commercial applications. The conference is cross-sector and features talks from across all industries and company sizes. EARL focuses on the real-world usage of R – we want … Read more EARL London 2020 call for abstracts

My newyeaRs resolution: slimming down (Seurat)

I’m currently developing a single-cell RNA Sequencing pipeline for NetworkAnalyst; an open source, web-based platform for comprehensive gene expression profiling & meta-analysis. The website uses mostly R code (via {RServe}📦 ), Java for the heavy-lifting and Javascript for data visualization. Developing this pipeline I’ve been applying various profiling and timing tools to optimize R code … Read more My newyeaRs resolution: slimming down (Seurat)

rOpenSci 2019 Code of Conduct Transparency Report

In January 2019, we announced the release of rOpenSci’s Code of Conduct version 2.0. This includes a named Committee, greater detail about unacceptable behaviors, instructions on how to make a report, and information on how reports are handled. We are committed to transparency with our community while upholding of victims and people who report incidents. … Read more rOpenSci 2019 Code of Conduct Transparency Report

On Cochran Theorem (and Orthogonal Projections)

Cochran Theorem – from The distribution of quadratic forms in a normal system, with applications to the analysis of covariance published in 1934 – is probably the most import one in a regression course. It is an application of a nice result on quadratic forms of Gaussian vectors. More precisely, we can prove that if … Read more On Cochran Theorem (and Orthogonal Projections)

Appsilon Data Science is now an RStudio Full Service Certified Partner

In November 2019, Appsilon Data Science became an RStudio Full Service Certified Partner. We now officially provide support services for existing Shiny applications, Plumber APIs, and RStudio infrastructure. Further, we now provide Managed Services for the R environment. This means that we can handle ongoing support for your servers and infrastructure to keep applications running … Read more Appsilon Data Science is now an RStudio Full Service Certified Partner

Mapping World Languages’ Difficulty Relative to English

[This article was first published on Educators R Learners, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. I was reading r/MapPorn and saw the image below: As fate … Read more Mapping World Languages’ Difficulty Relative to English

an elegant sampler

[This article was first published on R – Xi’an’s Og, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. Following an X validated question on how to simulate a … Read more an elegant sampler

LondonR & R-Ladies to host ‘watch party’ at RStudio Conference, Jan 29th

Mango Solutions, a full service certified partner of RStudio, are delighted to be supporting the rstudio::conf 2020 conference in San Francisco, on January 27th-30th.  This annual tech conference promises to be ‘all things R’ and includes an impressive agenda covering tutorials, presentations and lighting talks from recognised R experts and developers. As long time champions … Read more LondonR & R-Ladies to host ‘watch party’ at RStudio Conference, Jan 29th

Get Better: early career researcher development

[This article was first published on Rstats – quantixed, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. How can we contribute to the development of early career researchers … Read more Get Better: early career researcher development

Exploring the tightened EU CO2 emission standards for cars in 2020 – Why now selling an electric car can be worth an extra 18000€ for producers.

In this blog post I want to explore the EU regulation for average CO2 emissions of manufacturer’s car fleets using the EU data set of newly registered cars. The data was already studied on an aggregate level in my earlier post. Here we explore, in particular, the monetary implications of the regulatory details for different … Read more Exploring the tightened EU CO2 emission standards for cars in 2020 – Why now selling an electric car can be worth an extra 18000€ for producers.

Business Case Analysis with R (Guest Post)

Learning Machines proudly presents a fascinating guest post by decision and risk analyst Robert D. Brown III with a great application of R in the business and especially startup-arena! I encourage you to visit his blog too: Thales’ Press. Have fun! Introduction While Excel remains the tool of choice among analysts for business case analysis, … Read more Business Case Analysis with R (Guest Post)

On the conjugate function

In the MAT7381 course (graduate course on regression models), we will talk about optimization, and a classical tool is the so-called conjugate. Given a function f:\mathbb{R}^p\to\mathbb{R} its conjugate is function f^{\star}:\mathbb{R}^p\to\mathbb{R} such that f^{\star}(\boldsymbol{y})=\max_{\boldsymbol{x}}\lbrace\boldsymbol{x}^\top\boldsymbol{y}-f(\boldsymbol{x})\rbraceso, long story short, f^{\star}(\boldsymbol{y}) is the maximum gap between the linear function \boldsymbol{x}^\top\boldsymbol{y} and f(\boldsymbol{x}). Just to visualize, consider a simple … Read more On the conjugate function

Convert Apple Card PDF Statements to Tidy Data (i.e. for CSV/Excel/database export)

[This article was first published on R – rud.is, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. I saw this CNBC article on an in-theory browser client-side-only conversion … Read more Convert Apple Card PDF Statements to Tidy Data (i.e. for CSV/Excel/database export)

Sudoku game with R

[This article was first published on R – TomazTsql, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. Sudoku is a classical logical game based on combinatorial number replacement … Read more Sudoku game with R

5 Reasons to Learn H2O for High-Performance Machine Learning

[This article was first published on business-science.io, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. H2O is the scalable, open-source Machine Learning library that features AutoML. Here are … Read more 5 Reasons to Learn H2O for High-Performance Machine Learning

No Framework, No Problem! Structuring your project folder and creating custom Shiny components

[This article was first published on R Views, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. Pedro Coutinho Silva is a software engineer at Appsilon Data Science. It … Read more No Framework, No Problem! Structuring your project folder and creating custom Shiny components

OMG O2G!

The oil-to-gas ratio was recently at its highest level since October 2013, as Middle East saber-rattling and a recovering global economy supported oil, while natural gas remained oversupplied despite entering the major draw season. Even though the ratio has eased in the last week, it remains over one standard deviation above its long-term average. Is … Read more OMG O2G!

pointblank v0.3

[This article was first published on Posts | R & R, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. EnglishFrenchGerman The newest release of the pointblank package makes … Read more pointblank v0.3

How to reverse engineer a heat map into its underlying values

[This article was first published on R-posts.com, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. Astrolabe Diagnostics is a fully bootstrapped five-person biotech startup. We offer the Antibody … Read more How to reverse engineer a heat map into its underlying values

Start 2020 with mad new skills you learned at rstudio::conf. Final Call

[This article was first published on RStudio Blog, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. There will be no better time or place this year to accelerate … Read more Start 2020 with mad new skills you learned at rstudio::conf. Final Call

`R` you ready for python (gentle introduction to reticulate package)’

[This article was first published on R on notast, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. Just like how Thanos claimed to be inevitable in The Avengers, … Read more `R` you ready for python (gentle introduction to reticulate package)’

Heterogeneous treatment effects and homogeneous outcome variances

[This article was first published on R Psychologist – R, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. Recently there has been a couple of meta-analyses investigating heterogeneous … Read more Heterogeneous treatment effects and homogeneous outcome variances

rfoaas 2.1.0: New upstream so new access point!

[This article was first published on Thinking inside the box , and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. FOAAS, having been resting upstream for some time, released … Read more rfoaas 2.1.0: New upstream so new access point!

heatmaply 1.0.0 – beautiful interactive cluster heatmaps in R

I’m excited to announce that heatmaply version 1.0.0 has been published to CRAN! (getting started vignette is available here) What is heatmaply? heatmaply is an R package for easily creating interactive cluster heatmaps that can be shared online as a stand-alone HTML file. Interactivity includes a tooltip display of values when hovering over cells, as … Read more heatmaply 1.0.0 – beautiful interactive cluster heatmaps in R

glueformula: simply build regression formulas from vectors with variable names

The small new package glueformula with a single function gf facilitates constructing regression formulas from vectors with variable names. The syntax is similar to glue strings. Here is an example: # Example: build a formula # for ivreg with gf library(glueformula) # Contol variables and instruments contr = c(“x1″,”x2″,”x3″,”log(x4)”) instr = c(“z1″,”z2”,contr) # Create formula … Read more glueformula: simply build regression formulas from vectors with variable names

A Year in Flow

[This article was first published on AdventuresInData, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. Revisiting the river flow profile plot from an earlier post, the video below … Read more A Year in Flow

Nonlinear combinations of model parameters in regression

Nonlinear regression plays an important role in my research and teaching activities. While I often use the ‘drm()’ function in the ‘drc’ package for my research work, I tend to prefer the ‘nls()’ function for teaching purposes, mainly because, in my opinion, the transition from linear models to nonlinear models is smoother, for beginners. One … Read more Nonlinear combinations of model parameters in regression

BH 1.72.0-3 on CRAN

[This article was first published on Thinking inside the box , and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. The BH 1.72.0-1 release of BH required one update … Read more BH 1.72.0-3 on CRAN

Vignette: Podlover – A Package to Analyze Podcasting Data

[This article was first published on R-posts.com, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. Note: Some of the code blocks below got reformated by the WordPress editor. … Read more Vignette: Podlover – A Package to Analyze Podcasting Data

How to use your Garmin watch to tell your team you’re going for a run

[This article was first published on Colin Fay, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. Building an API in NodeJS and R to send message to Slack … Read more How to use your Garmin watch to tell your team you’re going for a run

From Shock to Competence: How Not to Panic When You Receive E-mail from CRAN about Failed Checks

[This article was first published on Posts on R-hub blog, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don’t. This post was contributed by Julia Romanowska, Researcher at the … Read more From Shock to Competence: How Not to Panic When You Receive E-mail from CRAN about Failed Checks

Python vs. R for Data Science: What’s the Difference?

If you’re new to data science, or your organization is, you’ll need to pick a language to analyze your data and a thoughtful way to make that decision. Full disclosure: While I can write Python, my background is mostly in the R community—but I’ll try my best to be non-partisan. The good news is that … Read more Python vs. R for Data Science: What’s the Difference?