A Tutorial on Writing Simulation Apps in Shiny

July 3, 2015
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I stand in awe of the R wizards who post their latest and greatest Shiny feats on R-Bloggers. It’s taken me a while to find my way around Shiny, but at last I feel ready to fill in a few gaps for others who may be just starting out and who aspire to write reasonably involved,...

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Chronicles from useR! – day 3

Chronicles from useR! – day 3

I survived to the Conference Dinner and I took the last

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Review: Machine Learning with R Cookbook

July 3, 2015
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"Machine Learning with R Cookbook" by Chiu Yu-Wei is nothing more or less than it purports to be: a collection of 110 recipes for applying Data Analysis and Machine...

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The state of assertions in R

July 3, 2015
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The state of assertions in R

“Assertion” is computer-science jargon for a run-time check on your code. In R , this typically means function argument checks (“did they pass a numeric vector rather than a...

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useR 2015: it’s a wrap!

July 3, 2015
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The latest worldwide R user conference has just wrapped up in Aalborg, Denmark and useR! 2015 was the best yet. A hearty round of applause to the organizers for...

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Chronicles from useR! – day 2

July 2, 2015
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Chronicles from useR! – day 2

As written by my colleague Nicola in the post of day 1,

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Exploring the Demographics of Ferguson, Missouri

July 2, 2015
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Exploring the Demographics of Ferguson, Missouri

One interesting feature of Census data is that it can help us to better understand current events and claims by the media. For example, the news coverage of the...

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3-step lesson, going into the life of machine learning

July 2, 2015
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3-step lesson, going into the life of machine learning

Automatic Machine Learning Introduction "I want to develop a model that automatically learns over time", a really challenging objective. We'll develop in this post a procedure that loads data,...

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An Update on Boosting with Splines

July 2, 2015
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An Update on Boosting with Splines

In my previous post, An Attempt to Understand Boosting Algorithm(s), I was puzzled by the boosting convergence when I was using some spline functions (more specifically linear by parts and...

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R brut

July 2, 2015
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R brut

Filed under: Kids, pictures, R, Statistics, University life Tagged: cex, pch, plot, R

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Get your R education going with GitHub

July 2, 2015
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Get your R education going with GitHub

by Joseph Rickert Last week, I was fortunate enough to attend the R Summit & Workshop, an invitation only event, held at the Copenhagen Business School. The abstracts for...

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Chart makeover – Unisys Security Insights Survey

July 2, 2015
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Chart makeover – Unisys Security Insights Survey

It seems that not a day goes by without some information security vendor releasing a report based on a survey. Thankfully, this post is not about the efficacy of...

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The R Consortium: what does it mean for me?

July 2, 2015
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By Andy Nicholls, Head of Consulting Earlier this week a press release from the Linux Foundation formally unveiled The R Consortium: “a group of businesses organized under an open source...

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iptools 0.2.0 is now on CRAN

July 1, 2015
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We are happy to announce that the iptools package is now on CRAN. Formerly only available on GitHub, iptools now compiles under Debian/Ubuntu, Fedora/CentOS/RedHat and Mac OS...

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Persistent data storage in Shiny apps

July 1, 2015
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This article is also published on RStudio’s Shiny Articles Shiny apps often need to save data, either to load it back into a different session or to...

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From cats to zombies, Wednesday at useR2015

July 1, 2015
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From cats to zombies, Wednesday at useR2015

The morning opened with someone who I was too bleary eyed to work out who it was. Possibly the dean of the University of Aalborg. Anyway, he said that...

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3D Graphing & Maps For Excel, R, Python, & MATLAB: Gender & Jobs, a 3D Gaussian, Alcohol, & Random Walks

July 1, 2015
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3D Graphing & Maps For Excel, R, Python, & MATLAB: Gender & Jobs, a 3D Gaussian, Alcohol, & Random Walks

Showing a third dimension on a flat computer screen is usually hard. Plotly’s interactive 3D graphing changes that. You can zoom, toggle, pan, rotate, spin, see data on the...

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Chronicles from useR! – day 1

Chronicles from useR! – day 1

Today I woke up for the first time in Aalborg. My colle

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News from UseR!2015 – the RHadoop tutorial

July 1, 2015
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News from UseR!2015 – the RHadoop tutorial

by Andrie de Vries Today is the first day of UseR!2015 conference in Aalborg in Northern Denmark. But yesterday was a day packed with 16 tutorials on a range...

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Variable Selection using Cross-Validation (and Other Techniques)

July 1, 2015
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Variable Selection using Cross-Validation (and Other Techniques)

A natural technique to select variables in the context of generalized linear models is to use a stepŵise procedure. It is natural, but contreversial, as discussed by Frank Harrell  in a great...

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useR 2015: Computational

July 1, 2015
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useR 2015: Computational

These are my initial notes from useR 2015. I will/may revise when I have time. Computational Performance; Chair: Dirk Eddelbuettel Running R+Hadoop using Docker Containers (E. James Harner) Introduction...

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Trigonometric Pattern Design

July 1, 2015
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Trigonometric Pattern Design

Triangles are my favorite shape, three points where two lines meet (Tessellate, Alt-J) Inspired by recurrence plots and by the Gauss error function, I have done the following plots....

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useR 2015: Networks

July 1, 2015
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useR 2015: Networks

These are my initial notes from useR 2015. Will revise when I have time. fbRads: Analyzing and managing Facebook ads from R (Gergely Daroczi) Modern advertising Google/Amazon/Facebook use our...

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useR 2015: Romain Francois: My R adventures

July 1, 2015
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useR 2015: Romain Francois: My R adventures

Using R since 2002 and has been working on Rcpp, Rcpp11, Rcpp14 and dplyr internals. Worked on a number of big projects. 2005 he set up the R Graph...

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How long do prison escapees go before being caught?

June 30, 2015
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How long do prison escapees go before being caught?

How long do prison escapees go before being caught? The post How long do prison escapees go before being caught? appeared first on Decision Science News.

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Useful tutorials

June 30, 2015
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There are some tools that I use regularly, and I would like my research students and post-docs to learn them too. Here are some great online tutorials that might help. ggplot tutorial...

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flip and rotate branches in ggtree

June 30, 2015
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flip and rotate branches in ggtree

flip function is a feature request from ggtree user. It accepts a tree view and two node numbers and exchange the positions of the selected clades. ?View Code RSPLUS1

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How I made every tech company that I may ever want to work for in the future hate me, or “GO R Consortium!”

June 30, 2015
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How I made every tech company that I may ever want to work for in the future hate me, or “GO R Consortium!”

It turns out that when people tell you things, you should listen. Like when Joe Rickert of Microsoft says “this is not news, please don’t repeat what I’m about...

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Chronicles from useR! – day 0

June 30, 2015
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Chronicles from useR! – day 0

Today my Quantide's colleague Nicola Sturaro and I came

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