3651 search results for "gis"

What are the Odds of an Independent Scotland?

August 18, 2014
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What are the Odds of an Independent Scotland?

“For things to remain the same, everything must change.” (Gattopardo by Giuseppe Tomasi di Lampedusa) In less than a month, Scots will decide if they want Scotland tied or apart of UK. Over the last days, I’ve noticed a variety of projections in the British press about this, but I decided to give it a

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21 R navigation tools

August 17, 2014
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21 R navigation tools

Navigation gets you from where you are to where you want to be. Speaking of navigation, you can jump to selected sections of this post: Navigation; R-bloggers; Task views; Rdocumentation.org; sos package; ??; apropos; ls; methods; getAnywhere; :::; find; args; grep; %in%; str; getwd; file.choose; Spyglass summary; browser; See also. Overview Figure 1: A map The post

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Quicksort speed, just in time compiling and vectorizing

August 17, 2014
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Quicksort speed, just in time compiling and vectorizing

I was reading the Julia documentation the other day. They do speed comparisons to other languages. Obviously R does not come out very well. The R code for quicksort is here and I noticed it was not vectorized at all. So I wondered if it could be improv...

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Update to resolv (0.1.2) + valgrind and R + Parallel DNS Requests with Revolution R’s ‘foreach’ and `doParallel`

August 15, 2014
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Thanks to a blog comment by @arj, I finally ran at least one of the new Rcpp-based through valgrind (resolv) and, sure enough there were a few memory leaks which are now fixed. However, I first ran valgind with a simple test R script that just did library(stats) to get a baseline (and dust off some...

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Propensity Modeling, Causal Inference, and Discovering Drivers of Growth

August 14, 2014
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Propensity Modeling, Causal Inference, and Discovering Drivers of Growth

Imagine you just started a job at a new company. You watched World War Z recently, so you're in a skeptical mood, and given that your last two startups failed from what you believe to be a lack of data, you're giving everything an extra critical eye. You start by thinking about the impact of the sales team. How...

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LA R meetup – September 4: Highlights from the useR! 2014 Conference

August 14, 2014
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Five LA R meetup members will present short talks of what they learned at useR!...

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5 new R jobs (for Augest 13th 2014)

August 13, 2014
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5 new R jobs (for Augest 13th 2014)

This is the bimonthly R Jobs post (for 2014-08-13), based on the R-bloggers’ sister website: R-users.com. If you are an employer who is looking to hire people from the R community, please visit this link to post a new R job (it’s free, and registration takes less than 10 seconds). If you are a job seekers, please follow the links below to learn more and apply for your job of interest (or visit previous...

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New and Updated R Packages for Security Data Science

August 12, 2014
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We’ve got some new and updated R packages that are (hopefully) helpful to security folks who are endeavouring to use R in their quest to find and prevent malicious activity. All packages now incorporate a testthat workflow and are fully roxygen-ized and present some best practices in R package development (a post on that very topic is pending). We’ll start with...

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Critical Data (free) Hackathon in London (Sept 6-7, 2014)

August 11, 2014
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We would like to invite you to participate in our forthcoming Critical Data Marathon a FREE event taking place in London on 6-7 September 2014. The event is collaboratively organised between researchers at Massachusetts Institute of Technology (MIT), University College London, King’s College London, and Imperial College London.The data marathon will bring together frontline healthcare providers (nurses, pharmacists, doctors) with data scientists to...

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Master R Developer Workshop – San Francisco, January 19-20

August 11, 2014
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Master R Developer Workshop – San Francisco, January 19-20

RStudio is planning a new Master R Developer Workshop to be taught by Hadley Wickham in the San Francisco Bay Area on January 19-20. This will be the same workshop that Hadley is teaching in September in New York City to a sold out audience. If you did not get a chance to register for the

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