How to make children eat more vegetables

February 28, 2019
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Will plates with vegetables and fruit paintings cause children to eat more vegetables and fruits? Here is an example for how not to test this hypothesis

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EARL London early bird tickets now on sale

February 28, 2019
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Early bird tickets for the Enterprise Applications of the R Language Conference are now on sale! The EARL Conference is in its sixth year, its a cross-sector conference that focuses on the commercial use of the R programming language. Take a look at our highlights from last year: We are busy putting together another brilliant agenda, but there’s still...

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drat All The 📦! : Enabling Easier Package Discovery and Installation with Your Own CRAN-like Repo for Your Packages

February 28, 2019
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drat All The 📦! : Enabling Easier Package Discovery and Installation with Your Own CRAN-like Repo for Your Packages

I’ve got a work-in-progress drat-ified CRAN-like repo for (eventually) all my packages over at CINC🔗 (“CINC is not CRAN” and it also sounds like “sync”). This is in parallel with a co-location/migration of all my packages to SourceHut (just waiting for the sr.ht alpha API to be baked) and a self-hosted public Gitea instance. Everything... Continue reading →

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RStudio Instructor Training

February 27, 2019
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We are pleased to announce the launch of RStudio’s instructor training and certification program. Its goal is to help people apply modern evidence-based teaching practices to teach data science using R and RStudio’s products, and to help people who need such training find the trainers they need. Like the training programs for flight instructors, the ski patrol, and the Carpentries,...

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CDSBMexico: remember to apply for BioC2019 travel scholarships

February 27, 2019
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CDSBMexico: remember to apply for BioC2019 travel scholarships

This blog post was first published at the CDSBMexico website. #CDSBMexico: remember to apply for BioC2019 travel scholarships!!Due date is March 15thhttps://t.co/iegG0qQzwuLet us help you! Here we give you some ideas 💡We can also give you feedback via Slack ✅#rstats #bioconductor @Bioconductor #bioc2019 #diversity #LatAm #rstatsES pic.twitter.com/EORg8d2Qxj— ComunidadBioInfo (@CDSBMexico) March 1, 2019 About 10 months ago we announced our plans to...

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CDSBMexico: remember to apply for BioC2019 travel scholarships

February 27, 2019
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CDSBMexico: remember to apply for BioC2019 travel scholarships

This blog post was first published at the CDSBMexico website. #CDSBMexico: remember to apply for BioC2019 travel scholarships!!Due date is March 15thhttps://t.co/iegG0qQzwuLet us help you! Here we give you some ideas 💡We can also give you feedback via Slack ✅#rstats #bioconductor @Bioconductor #bioc2019 #diversity #LatAm #rstatsES pic.twitter.com/EORg8d2Qxj— ComunidadBioInfo (@CDSBMexico) March 1, 2019 About 10 months ago we announced our plans to...

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A wee look at group_map and group_split in dplyr

February 27, 2019
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Dplyr 0.8.0 launched recently, which you probably already know, but just in case you missed it.. Two new functions have been catching my eye : group_map and group_split. The aim of this post - take a first look at these and try and get a ne...

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Tips for drawing a normal distribution

February 27, 2019
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Tips for drawing a normal distribution

KNOW THY INFLECTION POINT Click to Enlarge We have drawn a lot of sorry-looking normal distributions in our life. It’s a shape that’s hard to get down without a lot of practice. Here’s a few tips that can make it easier. Start by marking out standard deviations on the x axis from -3 to +3 The post Tips for...

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Individual patch connectivity

February 27, 2019
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Individual patch connectivity

Answering questions from users is actually a good way to find potentially interesting things to post… With the obvious advantage that other people might find it useful too! So… let’s start… This MetaLandSim user wanted a way to derive the contribution of each individual patch to overall landscape connectivity. Here I used the method presented … Continue reading Individual...

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Investigating words distribution with R – Zipf’s law

February 27, 2019
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Investigating words distribution with R – Zipf’s law

Hello again! Typically I would start by describing a complicated problem that can be solved using machine or deep learning methods, but today I want to do something different, I want to show you some interesting probabilistic phenomena! Have you heard of Zipf’s law? I hadn’t until recently. Zipf’s law is an empirical law that Article Investigating words distribution...

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KDA–Robustness Results

February 27, 2019
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KDA–Robustness Results

This post will display some robustness results for KDA asset allocation. Ultimately, the two canary instruments fare much better using … Continue reading →

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You Need to Start Branding Your Graphs. Here’s How, with ggplot!

February 26, 2019
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You Need to Start Branding Your Graphs. Here’s How, with ggplot!

In today's post I want to help you incorporate your company's branding into your ggplot graphs. Why should you care about this? I'm glad you asked!     Have you ever seen a graph that looks like this? Of course you have! This is the default ggplot theme, and these graphs are everywhere. Now, look--I like the way this graph looks. The...

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Robust Regressions: Dealing with Outliers in R

February 26, 2019
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Robust Regressions: Dealing with Outliers in R

Robust Regressions in R CategoriesRegression Models Tags Machine Learning Outlier R Programming Video Tutorials It is often the case that a dataset contains significant outliers – or observations that are significantly out of range from the majority of other observations in our dataset. Let us see how we can use robust regressions to deal with this issue. I described in another tutorial how we can run...

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handlr: convert among citation formats

Citations are a crucial piece of scholarly work. They hold metadata on each scholarly work, including what people were involved, what year the work was published, where it was published, and more. The links between citations facilitate insight into many questions about scholarly work. Citations come in many different formats including BibTex, RIS, JATS, and many more. This is not...

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“If You Were an R Function, What Function Would You Be?”

February 26, 2019
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We’ve been getting some good uptake on our piping in R article announcement. The article is necessarily a bit technical. But one of its key points comes from the observation that piping into names is a special opportunity to give general objects the following personality quiz: “If you were an R function, what function would … Continue reading “If...

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uRos2019: tutorials, keynote speakers, registration and call for papers!

February 26, 2019
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uRos2019: tutorials, keynote speakers, registration and call for papers!

The 7th use of R in Official Statistics conference is the event for all things R in the production and use of government statistics. The 7th installment of this conference will take place from 20 to 21 May 2019 at … Continue reading →

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R-Trainings in Hamburg – Register now!

February 26, 2019
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R-Trainings in Hamburg – Register now!

With more than 1,500 satisfied participants, eodas R-trainings are the leading courses for the programming language in the German-speaking region. In May, 2019, we bring our popular courses „Introduction to R“ and…

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Customers who bought…

February 26, 2019
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Customers who bought…

One of the classic examples in data science (called data mining at the time) is the beer and diapers example: when a big supermarket chain started analyzing their sales data they encountered not only trivial patterns, like toothbrushes and toothpaste being bought together, but also quite strange combinations like beer and diapers. Now, the trivial … Continue reading "Customers...

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Using Rstudio Jobs for training many models in parallel

February 26, 2019
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Recently, Rstudio added the Jobs feature, which allows you to run R scripts in the background. Computations are done in a separate R session that is not interactive, but just runs the script. In the meantime your regular R session stays live so you can do other work while waiting for the Job to complete. Instead refreshing your Twitter...

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Making thematic maps for Belgium

February 26, 2019
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Making thematic maps for Belgium

For people from Belgium working in R with spatial data, you can find excellent workshop material on creating thematic maps for Belgium at https://workshop.mhermans.net/thematic-maps-r/index.html by Maarten Hermans (researcher at the HIVA - Onderzoeksinstituut voor Arbeid en Samenleving - https://mhermans.net). The plots are heavily based on BelgiumMaps.Statbel - an R package from bnosac released 2 years ago (more info at...

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RcppStreams 0.1.3: Keeping CRAN happy

February 25, 2019
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RcppStreams 0.1.3: Keeping CRAN happy

Not unlike the Rblpapi release on Thursday and the RVowpalWabbit release on Friday (both of which dealt with the upcoming staged install), we now have another CRAN-requested maintenance release. This time it is RcppStreams which got onto CRAN as of ...

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Gartner’s 2019 Take on Data Science Software

February 25, 2019
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Gartner’s 2019 Take on Data Science Software

I've just updated The Popularity of Data Science Software to reflect my take on Gartner's 2019 report, Magic Quadrant for Data Science and Machine Learning Platforms. To save you the trouble of digging through all 40+ pages of my report, here's just the updated section: Continue reading →

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Bolsonaro’s First Job Approval Ratings

February 25, 2019
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Bolsonaro’s First Job Approval Ratings

President Jair Bolsonaro’s job approval ratings average 39.5% during his first quarter in office so far (from January through late February). Compared to the former presidents, for which I’ve estimates, his quarterly job approval ratings are abov...

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Logistic regression in R using blorr package

February 25, 2019
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Logistic regression in R using blorr package

We are pleased to introduce the blorr package, a set of tools for building and validating binary logistic regression models in R, designed keeping in mind beginner/intermediate R users. The package includes: comprehensive regression output variable selection procedures bivariate analysis, model fit statistics and model validation tools various plots and underlying data If you know how to build models using glm(), you will find blorr very useful....

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A example in causal inference designed to frustrate: an estimate pretty much guaranteed to be biased

February 25, 2019
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A example in causal inference designed to frustrate: an estimate pretty much guaranteed to be biased

I am putting together a brief lecture introducing causal inference for graduate students studying biostatistics. As part of this lecture, I thought it would be helpful to spend a little time describing directed acyclic graphs (DAGs), since they are an extremely helpful tool for communicating assumptions about the causal relationships underlying a researcher’s data. The strength of DAGs is that...

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stats19: a package for road safety research

stats19: a package for road safety research

Introduction stats19 is a new R package enabling access to and working with Great Britain’s official road traffic casualty database, STATS19. We started the package in late 2018 following three main motivations: The release of the 2017 road crash statistics, which showed worsening road safety in some areas, increasing the importance of making the data more accessible. The realisation that many researchers were writing ad hoc code...

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Four Dataviz Posters

February 25, 2019
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Four Dataviz Posters

I was asked for some examples of posters I’ve made using R and ggplot. Here are four. Some of these are done from start to finish in R, others involved some post-processing in Illustrator, usually to adjust some typographical elements or add text in a sidebar. I’ve linked to a PDF of each one, along with a pointer to...

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Reshama Shaikh discusses women in machine learning and data science.

February 25, 2019
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Reshama Shaikh discusses women in machine learning and data science.

Hugo Bowne-Anderson, the host of DataFramed, the DataCamp podcast, recently interviewed Reshama Shaikh, organizer of the meetup groups Women in Machine Learning & Data Science (otherwise known as WiMLDS) and PyLadies. Here is the podcast link. Introducing Reshama Shaikh Hugo: Hi there, Reshama, and welcome to DataFramed. Reshama: ...

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R Journal Volume 10/2, December 2018 is out!

February 25, 2019
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R Journal Volume 10/2, December 2018 is out!

We forgot to say: R Journal Volume 10/2, December 2018 is out! A huge thanks to the editors who work very hard to make this possible. And big “thank you” to the editors, referees, and journal for helping improve, and for including our note on pipes in R.

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