2235 search results for "Map"

Ryan Rosario on Parallel programming in R

August 17, 2012
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Earlier this year data scientist Ryan Rosario gave a talk on parellel computing with R to the Los Angeles R User Group, and he recently made the slides from the talk available online. They're a great resource for anyone looking to make use of multi-processor systems a Hadoop based architechure to speed computations with big data. Ryan's talk was...

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London 2012 Olympics — Lead, tin and zinc

August 17, 2012
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London 2012 Olympics — Lead, tin and zinc

Folks at WSJ were funny. They gave another medal list of London 2012 Olympic Games, not for the first place but for the last place. They replaced Gold, Silver and Bronze with  Lead, Tin and Zinc. No matter who came up to this idea, it’s … Continue reading →

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London 2012 Olympics — medal statistics

August 14, 2012
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London 2012 Olympics — medal statistics

The 2012 Olympic Games officially ended this Sunday in London. Although I missed most of the games, I was still entertaining myself with some hilarious news, such as Thomas’s re-diving. So much fun. I would remember this for years :) Games ended. … Continue reading →

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googleVis 0.2.17 is released: Displaying earth quake data

August 13, 2012
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googleVis 0.2.17 is released: Displaying earth quake data

The next version of the googleVis package has been released on the project site and CRAN. This version provides updates to the package vignette and a new example for the gvisMerge function. The new sections of the vignette have been featured on this ...

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In case you missed it: July 2012 Roundup

August 10, 2012
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In case you missed them, here are some articles from June of particular interest to R users. The Environmental Performance Index website uses R to rank countries by measures like environmental health and ecosystem vitality. A log-linear regression in R predicted the gold-winning Olympic 100m sprint time to be 9.68 seconds (it was actually 9.63 seconds). Some R-related talks...

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2012 Summer Olympics: Home Court Advantage – How Will the Brits Perform?

August 9, 2012
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2012 Summer Olympics: Home Court Advantage – How Will the Brits Perform?

The Olympics are a big deal on a global scale. How big? Perhaps Paula Radcliffe (an English long distance runner) said it best: "I have achieved a lot and I'm grateful for that - I'm just a bit greedy because I want to add the Olympics. It's...

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Exploring distributions of Ensatina salamander subspecies using rvertnet by Neil Kelly

August 9, 2012
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Exploring distributions of Ensatina salamander subspecies using rvertnet by Neil Kelly

This week we have a guest blog post by Neil Kelley Last week, I stumbled on Vijay’s blog post demonstrating his new package rvertnet. Although I am a paleontologist, some of my research involves anatomical comparison between extinct species and extant relatives or ecological analogs, so I have some experience using VertNet to track down

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Exploring distributions of Ensatina salamander subspecies using rvertnet by Neil Kelly

August 9, 2012
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Exploring distributions of Ensatina salamander subspecies using rvertnet by Neil Kelly

This week we have a guest blog post by Neil Kelley Last week, I stumbled on Vijay’s blog post demonstrating his new package rvertnet. Although I am a paleontologist, some of my research involves anatomical comparison between extinct species and extant relatives or ecological analogs, so I have some experience using VertNet to track down

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If you are into large data and work a lot with package ff

August 8, 2012
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If you are into large data and work a lot with package ff

The ff package is a great and efficient way of working with large datasets.  One of the main reasons why I prefer to use it above other packages that allow working with large datasets is that it is a complete set of tools. When comparing it to the other open source 'bigdata' packages in R It is not...

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Manipulating Data Frames Using sqldf – A Brief Overview

August 8, 2012
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By Josh MillsIntroductionFor those who are learning R and who may be well-versed in SQL, the sqldf package provides a mechanism to manipulate R data frames using SQL. Even for experienced R programmers, sqldf can be a useful tool for data manipulation. This site provides a useful introduction to SQL. The...

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