898 search results for "Rstudio"

A slightly different introduction to R, part I

January 19, 2013
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A slightly different introduction to R, part I

Note in Swedish: Jag hoppas läsaren ursäktar att jag skriver på engelska då och då. This will be a brief introduction to using the statistics software R for biologists who want to do some of their data analysis in R. There are plenty of introductions to R (see here and here, for example; these are

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Dynamically annotate graphs with Shiny

January 18, 2013
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Dynamically annotate graphs with Shiny

Below I present a simple way to automatically annotate plots through Shiny It occurred to me that labeling plots should be really easy to do with R-studio's swanky 'Shiny' add on. To test this I gathered some time series data from Wikipedia, added opt...

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In case you missed it: December 2012 Roundup

January 17, 2013
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In case you missed them, here are some articles from December of particular interest to R users. The blog is.R ran an excellent series of R tips and applications in December, with posts including working with Stata files, working with graphs and networks, and text analysis. Kohske Takahashi provides R scripts to create a collection of optical illusions. Highlights...

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Wikipedia page views

January 16, 2013
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Wikipedia page views

Here I present an application that quantifies Wikipedia page views. It can visualise any topic in any language. It is (shamelessly) based on an application by the blogger Andrew Clark (pssguy), whose code is available here.I have added:multi ...

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Visualize Color Palettes in Interactive 3D Grid (Shiny + RGL)

January 12, 2013
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Visualize Color Palettes in Interactive 3D Grid (Shiny + RGL)

You can view the application online at http://trestletechnology.net:3838/rgl/! (Bear with us as we try out the very early release of Shiny Server. There may be some downtime and manual restarts of the service required in the next couple of weeks. Please drop us a line if it’s not working as you expected.) This is an

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Shiny = Happy People

January 11, 2013
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The people behind the wonderful RStudio, which I gushed about in a previous post, have developed a new package, Shiny, that makes it easy to develop interactive web applications with R. Shiny is not the first package to facilitate building web apps with R (see here for comparison of Shiny and gWidgetsWWW2.rapache), but it is

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Shiny Apps

January 11, 2013
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Shiny Apps

I have been working on developing some interactive tools for demonstrating statistical principles. The advent of the shiny framework for R from the RStudio team has made this very easy to do. These demos are still in the development...

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Install R in Ubuntu 12.04 Precise Pangolin

January 10, 2013
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R is a free software environment for statistical computing and graphics. It compiles and runs on a wide variety of UNIX platforms, Windows and MacOS. One of my main motivations to install R is Sweave. The Sweave is a literate programming language which integrates LaTeX and R code. The main idea of the Sweave is to combine data analysis code...

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Revisiting Cronbach 1951 via Simulation with Shiny

January 9, 2013
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Revisiting Cronbach 1951 via Simulation with Shiny

At the time of the creation of this blog, Cronbach’s 1951 piece on coefficient alpha has 18,132 citations according to google scholar.  The main use of coefficient alpha is to assess internal consistency reliability of a test or survey.   Although it may have been forgotten, the proof Cronbach demonstrated established that coefficient alpha is the mean of all split...

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Revisiting Cronbach 1951 via Simulation with Shiny

January 9, 2013
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Revisiting Cronbach 1951 via Simulation with Shiny

At the time of the creation of this blog, Cronbach’s 1951 piece on coefficient alpha has 18,132 citations according to google scholar.  The main use of coefficient alpha is to assess internal consistency reliability of a test or survey.   Although it may have been forgotten, the proof Cronbach demonstrated established that coefficient alpha is the mean of all split...

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