2216 search results for "MAP"

Data Mashups in R from O’Reilly

June 9, 2009
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Data Mashups in R from O’Reilly

O’Reilly has published Data Mashups in R as a $4.99 PDF download in their Short Cut series. In 27 pages it takes you through an example of how to combine foreclosure information with maps and geographical information...

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Accessing Soil Survey Data via Web-Services

May 28, 2009
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Accessing Soil Survey Data via Web-Services

Soil Survey Data   Online Querying of NRCS Soil Survey Data Sometimes you are only interested in soils data for a single map unit, component, or horizon. In these cases downloading the entire survey from Soil Data Mart is not worth the effort. An...

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Simple Approach to Converting GRASS DB-backends

May 23, 2009
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  Premise: The current default database back-end used by the GRASS vector model is DBF (as of GRASS 6.5), however this is probably going to be changed (to SQLite) in GRASS 7. The DBF back-end works OK, however it tends to be very sensitive (i.e. breaks) when reserved words occur in column names or...

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Baby steps with RSRuby in Rails

May 20, 2009
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Baby steps with RSRuby in Rails

Plotting and charting libraries for Ruby (on Rails) abound. However, few are sophisticated enough for scientists and many are not actively maintained. Plotting in R, on the other hand, is about as sophisticated as it comes. Can we bridge Ruby and R? Yes we can, thanks to Alex Gutteridge’s RSRuby. The next

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Packages featured with Inference for R

May 12, 2009
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Packages featured with Inference for R

quantmod, TTR, and xts were (not so) recently featured on the Inference for R Blog. Inference for R is a Integrated Development Environment (IDE) designed specifically for R.The post gives an example of how to easily perform advanced financial stock a...

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Region Of Interest analysis of BOLD data

Region Of Interest analysis of BOLD data

For my research I do Region-Of-Interest (ROI) analyses of BOLD fMRI data. That is, we look at how brain activity develops in certain predefined brain regions during an experiment. On this site I describe a script that automates these analyses, using SP...

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R/Finance 2009 Presentations Online

May 4, 2009
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R/Finance 2009 Presentations Online

Posted to the R-SIG-Finance mailing list today:For those who missed it, the slides for the R/Finance 2009 tutorialsand presentations are now available on RinFinance.comhttp://www.RinFinance.com/presentationsWe want to thank everyone who traveled to Chi...

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RSI(2) with Position Sizing

May 1, 2009
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RSI(2) with Position Sizing

Though it's more than two weeks later, here's the second post in the series that will demonstrate how to build, test, and implement a trading strategy with R. You can find the first post here.The first post replicated this simple RSI(2) strategy from ...

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R/Finance 2009 Overview

April 28, 2009
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R/Finance 2009 Overview

The first international R/Finance 2009 conference in Chicago, IL was a huge success! David Smith from REvolution Computing has written a great summary of the entire event. I'll take the lazy route and point you to his blog post. :)The first internati...

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opentick is no more

April 17, 2009
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opentick is no more

After a year of "we plan to accept new subscribers shortly", opentick has shut its doors completely. As of March 20th, the opentick service is no longer available.From opentick.com:3/16/2009To opentick subscribers, friends, supporters, contributors an...

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