999 search results for "maps"

R, GeoJSON and GitHub

September 20, 2013
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R, GeoJSON and GitHub

GeoJSON is an open computer file format for encoding collections of simple geographical features along with their non-spatial attributes using …Continuar leyendo »

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Animated IRL Pirate Attacks In R

September 19, 2013
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Animated IRL Pirate Attacks In R

Avast me hearRties! (ok, enough of the pirate speak in a blog post) It wouldn’t be TLAPD without out some modest code & idea pilfering from Mark Bulling & Simon Raper. While those mateys did a fine job hoisting up some R code (your really didn’t think I’d stop with the pirate speak, did you?)

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Church numerals in R (or how to prove the existence of natural numbers using the lambda calculus)

September 18, 2013
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Church numerals in R (or how to prove the existence of natural numbers using the lambda calculus)

One area of math that I’ve always been enamored with is the proof of numbers. The simplicity of the starting …Continue reading »

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Census Atlas Japan

September 15, 2013
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Census Atlas Japan

The 2011 Census Open Atlas project has been put on hold recently as various other research projects have intervened - more on these soon. However, over the summer  Chris Brunsdon and I have taken a research trip to Ritsumeikan University (Japan) where we visited Keiji Yano and Tomoki Nakaya. As part of this trip I began developing...

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A technique for doing parametrized unit testing in R: Case study with stock price data analysis

September 13, 2013
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Ensuring the quality and correctness of statistical or scientific software in general constitute as one fo the main responsibilities of scientific software developers and scientists who provide a code to solve a specific computational task. Sometimes t...

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MLB Rankings Using the Bradley-Terry Model

August 31, 2013
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MLB Rankings Using the Bradley-Terry Model

Today, I take my first shots at ranking Major League Baseball (MLB) teams. I see my efforts at prediction and ranking an ongoing process so that my models improve, the data I incorporate are more meaningful, and ultimately my predictions are largely accurate. For the first attempt, let’s rank MLB teams using the Bradley-Terry (BT) model. Before we discuss the rankings, we need...

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Fantastic presentations from R using slidify and rCharts

August 27, 2013
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Fantastic presentations from R using slidify and rCharts

Dr. Ramnath Vaidyanathan of McGill University gave an excellent presentation at a joint Data Visualization DC/Statistical Programming DC event on Monday, August 19 at nclud, on two R projects he leads — slidify and rCharts. After the evening, all I can say … Continue reading → The post Fantastic presentations from R using slidify and rCharts appeared first on

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Mapping Australian electoral divisions with ggplot2

August 18, 2013
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Mapping Australian electoral divisions with ggplot2

I’ve seen some creative visualisations of issues surrounding the Australian election recently though not as many maps as I expected. ‘ggplot2′ is the go-to package for plotting in R so I thought I’d see if I could plot the Australian electoral divisions with ggplot2. By using the Australian Electoral Commission’s GIS mapping coordinates and mutilating

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Census Atlas Japan

August 15, 2013
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Census Atlas Japan

The 2011 Census Open Atlas project has been put on hold recently as various other research projects have intervened – more on these soon. However, over the summer  Chris Brunsdon and I have taken a research trip to Ritsumeikan University (Japan) where we visited Keiji Yano and Tomoki Nakaya. As part of this trip I began developing a census atlas for

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Classi-Compare of Raster Satellite Images – Before and After

August 13, 2013
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For my research on the effect of power outages on fertility , we study a period of extensive power rationing that lasted for almost a whole year and affected most of Latin America, but in particular, it affected Colombia. The key difficult was to determine which areas were exposed to the power-outage and the extent to

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