4500 search results for "git"

Old Post with New d3 Life–GARCH and MA Performance

May 3, 2013
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Parallel coordinates become much more useful when they are interactive, so I recreated one of my favorite blog posts "Trend is Not Your Friend" Applied to 48 Industries and convert the chart to a living breathing d3 parallel coordinates chart courtesy ...

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Extending RevoScaleR for Mining Big Data – Naive Bayes

May 3, 2013
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Extending RevoScaleR for Mining Big Data – Naive Bayes

by Derek McCrae Norton, Senior Sales Engineer In this third installment (following part 1 and part 2) of Extending RevoScaleR for Mining Big Data we look at how to use the building blocks provided by RevoScaleR to create a Naive Bayes model. Motivation: Fit a Naive Bayes model to big data. Naive Bayes is a simple probabilistic classifier based...

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Improved R Profiling Summaries

May 2, 2013
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In my last post I mentioned that I had improved on R’s summaryRprof() function with a custom function called proftable(). I’ve updated proftable() to take advantage of R 3.0.0’s ability to record line numbers while profiling. I’ve put it on github – you can get it there or below. proftable reads in a file generated by...

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Changing The Presidential Election with R in the Browser

May 2, 2013
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After I finished with the tutorial post d3 <- R with rCharts and slidify and then saw R creates d3/javascript charts in Ipython Style Notebook, a light clicked.  I could finally answer the lingering question I have had ever since I saw the NYT ...

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Do Torontonians Want a New Casino? Survey Analysis Part 1

May 2, 2013
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Do Torontonians Want a New Casino?  Survey Analysis Part 1

Toronto City Council is in the midst of a very lengthy process of considering whether or not to allow the OLG to build of a new casino in Toronto, and where.  The process started in November of 2012, and set … Continue reading →

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Why Blog?

May 2, 2013
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Why Blog?

The Blog Review ProcessA series of events in my life have lead me to reconsider the value of blogging.The Back StoryShort story: I got fired.Long story: Recently I was hired to write occasional blog posts for Quandl. They probably figured that due to m...

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TV shows rated by episode as a Shiny App

May 1, 2013
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TV shows rated by episode as a Shiny App

A few days ago there was an interesting R based article by diffuseprior on the decline and fall in the quality of The Simpsons The author scraped results from GEOS, an online survey of TV programs, and applied the R package changepoint to offer an analysis of the show over time This seemed a candidate

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R creates d3/javascript charts in Ipython Style Notebook

May 1, 2013
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I am not sure I have ever done a post like this, but I was so blown away I had to do this post simply to embed this amazing Youtube video from the author of the R packages rCharts and slidify.  Watch this screencast as he creates d3/raphael charts...

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A Crash Course in R

May 1, 2013
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This code has been kindly contributed by Robin Edwards

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Color analysis of Flickr images

May 1, 2013
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Color analysis of Flickr images

Since I’ve seen this beautiful color wheel visualizing the colors of Flickr images, I’ve been fascinated with large scale automated image analysis. At the German Market Research association’s conference in late April, I presented some analyses that went in the same direction (click to enlarge): On the image above you can see the color

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