2240 search results for "map"

Reminder: Kölner R User Group meets on 30 March 2012

March 26, 2012
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Reminder: Kölner R User Group meets on 30 March 2012

Venue: Sion em Keldenich, Weyertal 47, 50937 Cologne, Germany, 6 p.m., 30 March 2012, View Larger MapFor more details and registration see the Kölner R User Group page.

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Canonical Correlation Analysis for finding patterns in coupled fields

March 25, 2012
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Canonical Correlation Analysis for finding patterns in coupled fields

First CCA pattern of Sea Level Pressure (SLP) and Sea Surface Temperature (SST) monthly anomalies for the region between -180 °W to -70 °W and +30 °N to -30 °S. The following post demonstrates the use of Canonical Correlation Analysis (CCA) for diagnosing coupled patterns in climate fields....

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Disproportionality Data

March 25, 2012
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Disproportionality Data

So I was hunting around for some data on disproportional electoral outcomes (when the proportion of voters cast for political parties is not close to the proportion of legislative seats that they win).Michael Gallagher keeps an updated version of his L...

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Gini Efficient Frontier

March 23, 2012
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Gini Efficient Frontier

David Varadi have recently wrote two posts about Gini Coefficient: I Dream of Gini, and Mean-Gini Optimization. I want to show how to use Gini risk measure to construct efficient frontier and compare it with alternative risk measures I discussed previously. I will use Gini mean difference risk measure – the mean of the difference

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R, Twitter and McDonald’s

March 23, 2012
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R, Twitter and McDonald’s

Ed Chen is a data scientist at Twitter, so he's accustomed to working with big data and complex models. In an interview with MIT Technology Review, he describes his data science toolbox: A common pattern for me is that I'll code a MapReduce job in Scala, do some simple command-line munging on the results, pass the data into Python...

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Metadata Dubuque and UHI

March 21, 2012
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Metadata Dubuque and UHI

I’m in the process of remaking all the metadata from scratch and looking once again at the question of UHI. There are not any global conclusions we can draw from the data yet; I’m just in the process of checking out everything that is available that could be used to illuminate the problem. The problem,

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Simple ROC plots with ggplot2 – Part 2

March 21, 2012
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Simple ROC plots with ggplot2 – Part 2

In the first part of this article we built a function (rocdata) to calculate the co-ordinates for the ROC plot and its summary statistics. Now we need to actually produce the plot. I make most of my plots in ggplot2 because of it’s versatility. However there’s no reason why these plots couldn’t be produced

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Data Analysis Training

March 20, 2012
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Data Analysis Training

I'm training some of my colleagues on Big'ish data analysis this week. Here's how I'm running the class. Would love your ideas to make it better. CLASS OBJECTIVES (LEARNING OUTCOMES)After completion of the course, you will be able to:Understand concept...

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Revolution Newsletter: March 2012

March 19, 2012
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The most recent edition of the Revolution Newsletter is out. The news section is below, and you can read the full March edition (with highlights from this blog and community events) online. You can subscribe to the Revolution Newsletter to get it monthly via email. Download Revolution R Enterprise, free for Academics. The new features of Revolution R Enterprise...

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Visualizing left-right government positions

March 19, 2012
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Visualizing left-right government positions

How does the political landscape of Europe change over time? One way to approach this question is to map the socio-economic left-right positions of the governments in power. So let’s plot the changing ideological  positions of the governments using data … Continue reading →

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