2447 search results for "gis"

Boxplots & Beyond IV: Beanplots

Boxplots & Beyond IV: Beanplots

This post is the last in a series of four on boxplots and some of their extensions.  Previous posts in this series have discussed basic boxplots, modified boxplots based on a robust asymmetry measure, and violin plots, an alternative that essentia...

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Choropleths Made Easy!

March 5, 2011
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Choropleths Made Easy!

Choropleth Maps are very useful to visualize spatial trends. There have been several blog posts providing detailed instructions on how to create a choropleth map in R using map, spplot and ggplot2. However, I believe that the p...

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Parallel processing in R for Windows

March 4, 2011
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The doSMP package (and its companion package, revoIPC), previously bundled only with Revolution R, is now available on CRAN for use with open-source R under the GPL2 license. In short, doSMP makes it easy to do SMP parallel processing on a Windows box with multiple processors. (It works on Mac and Linux too, but it's been relatively easy to...

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Calling R from JasperReports Server

March 2, 2011
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Revolution Analytics today announced a partnership with Jaspersoft, the makers of the most widely-used business intelligence software in the world. With this partnership, Revolution R and Jaspersoft software work together to bring the power of analytics coded in R to business users working with Business Intelligence (BI) dashboards and reports. If you're a Jaspersoft or R developer and would...

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Bootstrapping the Truncated Normal Distribution

March 2, 2011
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Bootstrapping the Truncated Normal Distribution

Here’s a post generated from my own ignorance of statistics (as opposed to just being marred by it)! In Labor Economics we walked through something called the truncated normal distribution. Truncated distributions come up a lot in the sciences because … Continue reading →

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Why learn R?

March 1, 2011
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Why learn R?

I'm introducing R to a few colleagues this week and want to share why learning a software like R is important... Here are a few articles that explain it well... Other reasons?Importance of data science- Couple years ago Google's Chief Economist Hal Var...

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Why learn R?

March 1, 2011
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Why learn R?

I'm introducing R to a few colleagues this week and want to share why learning a software like R is important... Here are a few articles that explain it well... Other reasons?Importance of data science- Couple years ago Google's Chief Economist Hal Var...

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Mapping the 2011 Chicago Mayoral Democratic Primary

February 25, 2011
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Mapping the 2011 Chicago Mayoral Democratic Primary

Mapping the Chicago Democratic Mayoral 2011 primary with Ruby, R, and ggplot2

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snow and ssh — secure inter-machine parallelism with R

February 24, 2011
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I just threw a post up on Revolutions, which got a lot longer than I planned. And got me thinking. And reading (see refs in previous post). And trying. Turns out that it was way easier than I thought! The problem:From the blog post: " OpenSSH is now available on all platforms. A sensible solution...

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sab-R-metrics: Basic Applied Regression (OLS)

February 23, 2011
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sab-R-metrics: Basic Applied Regression (OLS)

Today, I'll again be using a new data set that can be found here at my website (called 'leagueoutcomes.csv'). The data set includes the standings results of the 2009 season for MLB along with average game attendance by team. I'll use this to go over some basic regression techniques and tools in R. Hopefully this...

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