2278 search results for "Map"

Using Eigen for eigenvalues

January 11, 2013
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A previous post showed how to compute eigenvalues using the Armadillo library via RcppArmadillo. Here, we do the same using Eigen and the RcppEigen package. #include <RcppEigen.h> // ] using Eigen::Map; ...

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Shading regions under a curve

January 11, 2013
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Shading regions under a curve

Over on the Clastic Detritus blog, Brian Romans posted a nice introduction to plotting in R. At the end of his post, Brian mentioned he would like to colour in areas under the data curve corresponding to particular ranges of grain sizes. The comment area on a blog isn’t really amenable to giving a full answer to the...

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Gauge Chart in R

January 10, 2013
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Gauge Chart in R

How to replicate a google gauge chart in R? Google charts has several options to produce nice graphics. Most of them have their equivalent function in R and can be quickly replicated, but some of them require a bit of programming. For instance, take the google gauge charts which I really like: A gauge is … Continue reading...

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Reading Codebook Files in R

January 10, 2013
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One issue I continuously encounter when starting to work with a new dataset is that of the codebook. In general, I prefer to load a codebook into R like any other data source, specifically as a data frame. And ideally, one data frame to provides the variable names with descriptions and any other meta data available, and a separate...

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Factor Analysis of Baseball’s Hall of Fame Voters

January 9, 2013
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Factor Analysis of Baseball’s Hall of Fame Voters

Factor Analysis of Baseball's Hall of Fame VotersRecently, Nate Silver wrote a post which analyzed how voters who voted for and against Barry Bonds for Baseball's Hall of Fame differed. Not surprisingly, those who voted for Bonds were more likely to vote for other suspected steroids users (like Roger Clemens). This got...

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Data science = failure of imagination

January 8, 2013
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From: http://www.r-bloggers.com/data-driven-science-is-a-failure-of-imagination/I think I like this distinction between Bayesian and Frequentist statistics: "we are nearly always ultimately curious about the Bayesian probability of the hypothesis ...

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The myth of the missing Data Scientist

January 7, 2013
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The myth of the missing Data Scientist

Much has been said about the dire shortage of Data Scientists looming on the horizon. With the spectre of Big …Continue reading »

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New AQP Tutorials

January 4, 2013
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New AQP Tutorials

Soil Series Extent Several new AQP-related tutorials have been posted to the R-Forge project page. SoilProfileCollection class/method documentation soil series extent mapping examples read more

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Data-driven science is a failure of imagination

January 2, 2013
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Data-driven science is a failure of imagination

Professor Hans Rosling certainly is a remarkable figure. I recommend watching his performances. Especially the BBC's "Joy of Stats" is exemplary. Rosling sells passion for data, visual clarity and great deal of comedy. He represents the data-driven paradigm in science. What…Read more →

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Let’s Rapplicate!

January 2, 2013
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Let’s Rapplicate!

It's been a while since you last heard from Rapporter, and we came up with a (hopefully) good excuse for our absence from the blogosphere: Rapplications. To demystify: we developed an API that allows you to create dynamic reports by using the R templates and datasets available on Rapporter. All you need is an account on Rapporter (you can...

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