793 search results for "maps"

Mapping the Iowa caucus results: how it’s done with R

January 6, 2012
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Mapping the Iowa caucus results: how it’s done with R

If you've been following the presidential primary process here in the US, you've probably seen many maps of the results of the Iowa caucuses by now (such as this infamous one from Fox News). But you might be interested to learn how such maps can be made using the R language. The Offensive Politics blog explains the process in...

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Coat of arms of Poland challenge

January 5, 2012
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Coat of arms of Poland challenge

Last week I have experimented with coloring map of Poland in national colors. Vaidotas Zemlys improved on my effort by adding colors to map of Lithuania and posted a challenge to also add coat of arms to the plot. This proved to be a nice exe...

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Mapping the Iowa GOP 2012 Caucus Results

January 4, 2012
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Mapping the Iowa GOP 2012 Caucus Results

Introduction On Tuesday January 3rd 2012 the Iowa Republican party held it’s presidential caucuses, with Mitt Romney beating Rick Santorum by 8 votes as of noon on Jan 4th. This was an exciting race with multiple lead changes and entrance polling showing many late undecideds and large gaps in candidate support by age and income.

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Top 20 R posts of 2011 (and some R-bloggers statistics)

January 1, 2012
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Top 20 R posts of 2011 (and some R-bloggers statistics)

R-bloggers.com is now two years young. The site is an (unofficial) online R journal written by bloggers who agreed to contribute their R articles to the site. In this post I wish to celebrate R-bloggers’ second birthmounth by sharing with you: Links to the top 20 posts of 2011 Statistics on “how well” R-bloggers did Read more...

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Color map of Poland for the New Year

December 31, 2011
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Color map of Poland for the New Year

To celebrate the New Year I decided to plot map of Poland in our national colors.It was not so difficult using maps  package. Here is the result:and the code I used to generate it:library(maps)x.mid <- function(x1, x2, y1, y2, y.mid) {&nbs...

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dcemriS4 0.46

December 29, 2011
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dcemriS4 0.46

The R package dcemriS4 provides routines for the quantitative analysis of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), along with quantification of diffusion-weighted MRI (ADC = apparent diffusion coefficient) and quantitative T2 map...

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Magnetic Resonance Imaging in R

December 29, 2011
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Volume 44 of the Journal of Statistical Software was published in October 2011.  The special volume on “Magnetic Resonance Imaging in R” features articles and packages related to a variety of imaging modalities:functional MRIdiffusion-weighted MRIdynamic contrast-enhanced MRIdynamic susceptibility-contrast MRI structural MRIThe papers describe the methodology, software implementation and provide comprehensive examples and data. ...

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googleVis 0.2.13: new stepped area chart and improved geo charts

December 23, 2011
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googleVis 0.2.13: new stepped area chart and improved geo charts

On 7th December Google published a new version of their Visualisation API. The new version adds a new chart type: Stepped Area Chart and provides improvements to Geo Chart. Now Geo Chart has similar functionality to Geo Map, but while Geo Map requires ...

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An R function to map your Twitter Followers

December 21, 2011
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An R function to map your Twitter Followers

I wrote a little function to make a personalized map of who follows you or who you follow on Twitter. The idea for this function was inspired by some plots I discussed in a previous post. I also found a lot of really useful code over at flowing data he...

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December 2011 issue of the R Journal: An overview

December 20, 2011
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December 2011 issue of the R Journal: An overview

The December 2011 issue of the R Journal is now available for download. Three times a year, the open-access journal of the R project publishes peer-reviewed articles on research and applications of R and R packages. As of the latest issue, all articles are published under a Creative Commons license, making them accessible for translation, academic and commercial uses...

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