2533 search results for "Map"

Step by step to build my first R Hadoop System

August 20, 2013
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Step by step to build my first R Hadoop System

by Yanchang Zhao, RDataMining.com After reading documents and tutorials on MapReduce and Hadoop and playing with RHadoop for about 2 weeks, finally I have built my first R Hadoop system and successfully run some R examples on it. My experience … Continue reading →

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Warrior Zombies from Outer Space II: Mayhem Unleashed

August 20, 2013
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Warrior Zombies from Outer Space II: Mayhem Unleashed

Given the speed at which I consume them, it's only justified that the first post on this blog is about movies. (Although, by that logic, it could have equally well been about sandwiches, Nutella, or tissue paper. Note to self: Look for a Nutella consumption dataset) Anyway, this post is about movie taglines - specifically, the words that...

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Working with climate data from the web in R

August 17, 2013
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Working with climate data from the web in R

I recently attended ScienceOnline Climate, a conference in Washington, D.C. at AAAS. You may have heard of the ScienceOnline annual meeting in North Carolina - this was one of their topical meetings focused on Climate Change. I moderated a session on working with data from the web in R, focusing on climate data. Search Twitter for...

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Working with climate data from the web in R

August 17, 2013
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Working with climate data from the web in R

I recently attended ScienceOnline Climate, a conference in Washington, D.C. at AAAS. You may have heard of the ScienceOnline annual meeting in North Carolina - this was one of their topical meetings focused on Climate Change. I moderated a session on working with data from the web in R, focusing on climate data. Search Twitter for...

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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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The “splitstackshape” package for R

August 15, 2013
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A while ago, a friend of ours presented me with a data problem. Her questionnaire had some questions where the respondent could provide multiple responses. You know, the “Check as many as apply” type of questions. One way that this data is commonly stored is to put a comma separated value into a single cell

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Golf Scramble Simulation in R

August 14, 2013
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Golf Scramble Simulation in R

Golf Scramble Simulation Golf Scramble SimulationThis is a simulation of a standard best-ball golf scramble. Conventional wisdom has it that the best golfer (A) should hit last, the idea being that one of the lesser golfers may have a decent shot already so the...

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The Brand as Affordance: Item Response Modeling of Brand Perceptions

August 13, 2013
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The Brand as Affordance: Item Response Modeling of Brand Perceptions

It is just too easy to think of a brand as a web of associations.  What comes to mind when I say "Subway Sandwich"?  Did you remember a commercial or the "eat fresh" tagline?  Without much effort, one can generate a long list of associat...

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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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Short tales of two NCAA basketball conferences (Big 12 and West Coast) using graphs

August 12, 2013
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Short tales of two NCAA basketball conferences (Big 12 and West Coast) using graphs

Having been at the University of Kansas (Kansas Jayhawks) as a student and now working at Gonzaga University (Gonzaga Bulldogs), discussions about college basketball are inescapable. This post uses R, ggmap, ggplot2 and the shiny server to graphically ...

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