3553 search results for "git"

d3 and r interacting through shiny

December 7, 2012
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d3 and r interacting through shiny

I was amazed and delighted by the Reconstruct Gene Networks Using Shiny.  Jeff accomplished what I knew was possible but had absolutely no idea how to implement.  With the boost, I went to work combining his d3 force layout with my d3 experim...

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R analysis shows how UK health system could save £200m

December 7, 2012
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R analysis shows how UK health system could save £200m

According to an analysis by Prescribing Analytics (a joint venture of technologists and doctors in the UK), Britain's cash-strapped National Health Service (NHS) is overspending on prescription drugs. While cheaper (but equally effective) generic drugs are widely available for many treatments, some doctors continue to prescribe patented drugs which can cost 10 times as much — and often much...

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Dot-density maps with spsample()

December 7, 2012
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Dot-density maps with spsample()

Today’s example is a little odd, in that the code isn’t pretty and the example isn’t really something you’d actually produce in real life — but if you’ll overlook those oddities, you’ll find that the spsample(...

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Visualizing Baltimore with R and ggplot2: Crime Data

December 7, 2012
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Visualizing Baltimore with R and ggplot2: Crime Data

The advent of municipal open data initiatives has been both a blessing and curse for my particular brand of data nerd. On one hand, it has opened up the possibility of developing deep and useful knowledge about the places we...

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R in the Cloud

December 6, 2012
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R in the Cloud

I've been having some great fun parallelizing R code on Amazon's cloud. Now that things are chugging away nicely, it's time to document my foibles so I can remember not to fall into the same pits of despair again.The goal was to perform lots of trails of a randomized statistical simulation. The jobs were independent and fairly chunky, taking...

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Importing Data Into R from Different Sources

December 6, 2012
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I have found that I get data from many different sources.  These sources range from simple .csv files to more complex relational databases, to structure XML or JSON files.  I have compiled the different approaches that one can use to easily access these datasets. Local Column Delimited Files This is probably the most common and

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Link to Item Response Theory Presentations Using R

December 6, 2012
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After my post on item response theory,  a number of you have asked for links to applications that provide R code.  As I noted in that post, a good deal of work is being done in an area of research called patient-related outcome measurement (P...

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Flexibly outlining a set of points with alphahull

December 6, 2012
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Flexibly outlining a set of points with alphahull

We’ve previously covered the convex hull here at is.R(), and in that post I admitted that I was somewhat hard-pressed to come up with a common use-case — at least for Political Science applications. Well, today’s Gist illustrates the...

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Reconstruct Gene Networks Using Shiny

December 6, 2012
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Reconstruct Gene Networks Using Shiny

Check out the application on Glimmer!  http://glimmer.rstudio.com/qbrc/grn/   We’ve been experimenting with RStudio’s new Shiny software as a way to quickly and easily create interactive, responsive web applications which are able to leverage complicated analytics back-ends built in the R programming language. We created a simple interface which can infer the structure of an underlying

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One R package for all your taxonomic needs

December 6, 2012
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UPDATE: there were some errors in the tests for taxize, so the binaries aren't avaiable yet. You can install from source though, see below.Getting taxonomic information for the set of species you are studying can be a pain in the ass. You have to manually type, or paste in, your species one-by-one. Or, if you are lucky, there is...

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