543 search results for "Register"

What are the most popular bike routes in London?

February 7, 2012
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What are the most popular bike routes in London?

James Cheshire, R user and lecturer at the UCL Centre for Advanced Spatial Analysis, created this map of the most trafficked cycle routes in London: Click to enlarge, it's a gorgeous chart. The bicycle traffic data comes from London's public cycle-hire facility, which currently is only available in central London (which is why you don't see much activity in...

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Pre-conference tutorials announced for useR! 2012

January 30, 2012
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The worldwide R user conference, useR! 2012, will take place this year June 12-15 in Nashville, Tennessee. In addition to the regular program of invited and contributed talks, a highlight of every useR! is the pre-conference tutorials: hand-on, half-day in-depth expert-led sessions with a focused on a specific area of methodology with R. This year's roster of tutorials has...

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Parallel R Model Prediction Building and Analytics

January 26, 2012
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Modifying R code to run in parallel can lead to huge performance gains. Although a significant amount of code can easily be run in parallel, there are some learning techniques, such as the Support Vector Machine, that cannot be easily parallelized. However, there is an often overlooked way to speed up these and other models. It...

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Parallel R Model Prediction Building and Analytics

January 26, 2012
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Modifying R code to run in parallel can lead to huge performance gains. Although a significant amount of code can easily be run in parallel, there are some learning techniques, such as the Support Vector Machine, that cannot be easily parallelized. However, there is an often overlooked way to speed up these and other models. It involves executing the...

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Geocode your data using, R, JSON and Google Maps’ Geocoding APIs

January 24, 2012
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Over the last year and half, I have faced numerous challenges with geocoding the data that I have used to showcase my passion for location analytics.  In 2012, I decided to take thing in my control and turned to R.  Here, I am sharing a simpl...

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Hadley Wickham goes behind the scenes on ggplot2

January 20, 2012
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Hadley Wickham goes behind the scenes on ggplot2

Hadley Wickham, creator of the ggplot2 packages for R (as well as several others) will present a webinar on February 8 going behind the scenes of the popular graphics package. If you've never used ggplot2 before, this will be a great way to learn about the kinds of charts you can create with it; and if you're a regular...

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SOPA and PIPA damage the Internet – R-bloggers off-topic post

January 18, 2012
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Dear R people, It is a (VERY) rare event that I allow a non-R related content on R-bloggers. Today is one such rare a day. I do this in order to raise awareness of two bills in congress: H.R.3261 “Stop Online Piracy Act” and S.968 “PROTECT IP”, which could radically change the landscape of the Internet. These bills provide overly broad mechanisms...

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Parallel R Loops for Windows and Linux

January 17, 2012
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Parallel computation may seem difficult to implement and a pain to use, but it is actually quite simple to use. The foreach package provides the basic loop structure, which can utilize various parallel backends to execute the loop in parallel. First,...

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Parallel R Loops in Windows and Linux

January 17, 2012
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Parallel computation may seem difficult to implement and a pain to use, but it is actually quite simple to use. The foreach package provides the basic loop structure, which can utilize various parallel backends to execute the loop in parallel. First, let's go over the basic structure of a foreach loop. To get the foreach package, run the following...

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R: Web Scraping R-bloggers Facebook Page

January 6, 2012
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R: Web Scraping R-bloggers Facebook Page

  Introduction R-bloggers.com is a blog aggregator maintained by Tal Galili. It is a great website for both learning about R and keeping up-to-date with the latest developments (because someone will probably, and very kindly, post about the status of some R related feature). There is also an R-bloggers facebook page where a number of

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