2259 search results for "map"

Solving easy problems the hard way

March 17, 2012
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Solving easy problems the hard way

There’s a charming little brain teaser that’s going around the Interwebs. It’s got various forms, but they all look something like this: This problem can be solved by pre-school children in 5-10 minutes, by programer – in 1 hour, by people with higher education … well, check it yourself!  8809=6 7111=0 2172=0 6666=4 1111=0 3213=0 7662=2 9313=1 0000=4 2222=0 3333=0 5555=0 8193=3 8096=5 7777=0 9999=4 7756=1 6855=3 9881=5 5531=0 2581=? SPOILER ALERT… The answer has to do with how many

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Cooling Stations

March 17, 2012
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Cooling Stations

Over the course of the past few years I have taking a look at cooling stations a few times but never in much depth. A few other people have looked at them, but usually without much rigor. The standard approach is to find some cooling stations and then conclude that somehow global warming is thereby

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R and Hadoop: Step-by-step tutorials

March 14, 2012
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R and Hadoop: Step-by-step tutorials

At the recent Big Data Workshop held by the Boston Predictive Analytics group, airline analyst and R user Jeffrey Breen gave a step-by-step guide to setting up an R and Hadoop infrastructure. Firstly, as a local virtual instance of Hadoop with R, using VMWare and Cloudera's Hadoop Demo VM. (This is a great way to get familiar with Hadoop.)...

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A ridiculous proof of concept: xyz interpolation

March 14, 2012
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A ridiculous proof of concept: xyz interpolation

Ridiculous OrbThis is really the last one on this theme for a while... I had alluded to a combination of methods regarding xyz interpolation at the end of my last post and wanted to demonstrate this in a final example.The ridiculousness that you see above involved two interpolation steps. First,...

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More Anthromes !

March 13, 2012
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More Anthromes !

First off let me thank folks for all the comments and suggestions. I’m just starting to explore this data so perhaps I should explain how I go about  doing this. First off, I am looking for a global bias in the record from UHI. It is well known that you can look through the data

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In case you missed it: February Roundup

March 13, 2012
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In case you missed them, here are some articles from February of particular interest to R users. February 29 marked the 12th anniversary of the release of R 1.0.0, and the release of R 2.14.2. A list of commercial vendors who have integrated R with their products for data, analysis, and presentation. The rmr package (part of the RHadoop...

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Anthromes and UHI

March 12, 2012
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Anthromes and UHI

With BerkeleyEarth 1.6 posted to CRAN I figured it was time to do some sample programs to explain how the package worked and integrated with other packages. Also, I have some issues to check out with the metadata; and in the long run I want to reformulate my metadata package to include some new resources.

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Change in life expectancy animated with geo charts

March 12, 2012
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Change in life expectancy animated with geo charts

The data of the World Bank is absolutely amazing. I had said this before, but their updated iPhone App gives me a reason to return to this topic. Version 3 of the DataFinder App allows you to visualise the data on your phone, including motion maps, see...

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Hindi/Devanagari presentations using orgmode, R, latex and beamer

March 11, 2012
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I recently had to prepare a beamer presentation in hindi/devanagari. I usually use emacs-orgmode  with a lot of R source code embedded in it to prepare my beamer presentations. To adapt the entire setup to work with devanagari, this is what I needed to do.      Make orgmode export to latex using xetex rather than

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An RcppEigen example

March 11, 2012
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R is an Open Source project providing an interactive language and environment for statistical computing.  It has become the lingua franca for research in statistical methods.  Because R is an interpreted language it is comparat...

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