3793 search results for "GIS"

Visualizing the Forbes-CCAP University Rankings using ggplot2, rCharts, googleVis, and the shiny server

August 27, 2013
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Visualizing the Forbes-CCAP University Rankings using ggplot2, rCharts, googleVis, and the shiny server

President Obama is pushing for higher education reform and the development of a rating system for Universities is a critical component of it. These ratings are likely to be based on several measures, such as graduation rates, earnings of graduates, and...

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In-Hadoop R-based Analytics coming to Cloudera

August 27, 2013
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Revolution Analytics has teamed up with Cloudera to bring the scalable data manipulation and statistical modeling algorithms of Revolution R Enteprise to the massively-parallel computing environments of CDH3 and CDH4 Hadoop clusters. As ZDNet reports: Specifically, the upcoming version 7.0 of the Revolution R Enterpise distribution and its ScaleR algorithms will run inside CDH3 and CDH4, eliminating the need...

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Presenting Conformance Statistics

August 27, 2013
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Presenting Conformance Statistics

A client came to me with some conformance data. She was having a hard time making sense of it in a spreadsheet. I had a look at a couple of ways of presenting it that would bring out the important points. The Data The data came as a spreadsheet with multiple sheets. Each of the

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googleVis 0.4.4 released with new formatting options for tables

August 26, 2013
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Over the weekend googleVis 0.4.4 found its way to CRAN. The function gvisTable gained a new argument formats that allow users to define the formats numbers displayed in tables. Thanks to J. Buros, who contributed the code.ExampleLoadingSession InfoR ve...

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R, Twitter and URLs

August 26, 2013
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R, Twitter and URLs

Yesterday evening, I wanted to play with Twitter, and see which websites I was using as references in my tweets, to get a Top 4 list. The first problem I got was because installing twitteR on Ubuntu is not that simple ! You have to install properly RCurl… But you before install the package in R, it is necessary...

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MCMSki IV, Jan. 6-8, 2014, Chamonix (news #7)

August 26, 2013
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MCMSki IV, Jan. 6-8, 2014, Chamonix (news #7)

More exciting (and important!) news about MCMSki IV: First, some if not all of the 9 invited and the 16 contributed sessions are about now documented by abstracts. The program is completely set! If you plan to present a poster, remember to send me by email (a) surname, name (institution): title as the subject, (b)

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Using R to visualize Karpov-vs-Kasparov Lifetime winner-take-all tally

August 26, 2013
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Using R to visualize Karpov-vs-Kasparov Lifetime winner-take-all tally

The Karpov vs. Kasparov rivalry holds a special place in the chess world.The idea behind this analysis is simple. If we take their lifetime games, plot the wins, what would it look like? We introduce one twist -- we'll be plotting the "winner-take-all"...

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Using a GBM for Classification in R

August 26, 2013
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I discuss some advantages of Generalized Boosted Models over logistic regression and discriminant analysis and demonstrate how to use a GBM for binary classification (predicting whether an event occurs or not). Using a GBM for Classification in R from...

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predictNLS (Part 2, Taylor approximation): confidence intervals for ‘nls’ models

August 26, 2013
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predictNLS (Part 2, Taylor approximation): confidence intervals for ‘nls’ models

Initial Remark: Reload this page if formulas don’t display well! As promised, here is the second part on how to obtain confidence intervals for fitted values obtained from nonlinear regression via nls or nlsLM (package ‘minpack.lm’). I covered a Monte Carlo approach in http://rmazing.wordpress.com/2013/08/14/predictnls-part-1-monte-carlo-simulation-confidence-intervals-for-nls-models/, but here we will take a different approach: First- and second-order

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GDAT Class October 14-18, 2013

August 25, 2013
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GDAT Class October 14-18, 2013

This is your fast track to enterprise performance analysis and capacity planning with an emphasis on applying R statistical tools to your performance data. Early-bird discounts are available for the Level III Guerrilla Data Analysis Techniques class O...

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