2697 search results for "GIS"

Springer solution manuals on line

February 17, 2010
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Springer solution manuals on line

Springer Verlag has just posted on its webpage both the student and the instructor solution manuals to “Introducing Monte Carlo Methods with R”. Yes, both! Before you rush there, the Catch-22 in this announcement is that the access to the instructor version is restricted to registered instructors. So, if you are registered as an instructor

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Generalized linear mixed effect model problem

February 16, 2010
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Generalized linear mixed effect model problem

I am trying to compare cohort difference in infant mortality using generalized linear mixed model. I first estimated the model in Stata:xi:xtlogit inftmort i.cohort, i(code)which converged nicely:Fitting comparison model:Iteration 0:   log likelih...

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You can Hadoop it! It’s elastic! Boogie woogie woog-ie!

February 16, 2010
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You can Hadoop it! It’s elastic! Boogie woogie woog-ie!

I just came back from the future and let me be the first to tell you this: Learn some Chinese. And more than just cào nǐ niáng (肏你娘) which your friend in grad school told you means “Live happy with many blessings”. Trust me, I’ve been hanging with Madam Wu and she told me

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Highlight the R syntax on your (WordPress) blog using the wp-syntax plugin

February 12, 2010
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Highlight the R syntax on your (WordPress) blog using the wp-syntax plugin

Download link for WP-Syntax plugin (with GeSHi version 1.0.8.6) In case you have a self hosted Wordpress blog, and you wish to show your R code in it, how would you do it? The simplest solution would be to just paste the code as plain text, which will look like this: x <- rnorm(100, mean = 2, sd = 3) plot(x, xlab =...

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Loglinear models using R

February 10, 2010
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Loglinear models using R

For those sociologists who want to estimate complicated loglinear models (e.g. Goodman's RC model) using R, the package "VGAM" seems to be a good choice.

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Frank Harrell to teach Regression Modeling Strategies short course

February 9, 2010
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If you're using regression models but want really hone your regression-fu this short course on Regression Modeling Strategies by Frank Harrell looks really interesting. Frank is the author of the book Regression Modeling Strategies which is my go-to reference whenever I'm doing regression of any kind in R, so it's definitely worth a trip to Nashville to if you...

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Time-Space Analysis with R

February 6, 2010
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Time-Space Analysis with R

Beside the visualisation of TimeSpace Tracks, I’m trying to find a way to analyze GPX-Tracks with statistical software. This are the first results with R (The R Project for Statistical Computing):   ^This graph is a result of the analysis with the package trip (Spatial analysis of animal track data). Unfortunatelly i’m do not understand

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[Event] R / Finance 2010: Applied Finance with R

February 5, 2010
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[Event] R / Finance 2010: Applied Finance with R

One of the greatest event on R is under way… R / Finance 2010: Applied Finance with R April 16 & 17, Chicago, IL, US The second annual R / Finance conference for applied finance using R, the premier free software system for statistical computation and graphics, will be held this spring in Chicago, IL, USA on Friday April 16

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Mapping the Massachusetts election upset with R, ctd

February 4, 2010
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Mapping the Massachusetts election upset with R, ctd

Last week we looked at an analysis done in R by the good folks at Offensive Politics, looking at the political climate surrounding the recent Senate election in Massachusetts. There were some very insightful comments (thanks, Revolutions readers!) about the design of the charts, especially in the choice of color schemes used (the originals didn't use a neutral white...

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Predicting the Locations of ‘Emergency’ Ushahidi Reports in Port-au-Prince, and Implications for Crowdsourcing

February 2, 2010
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Predicting the Locations of ‘Emergency’ Ushahidi Reports in Port-au-Prince, and Implications for Crowdsourcing

Recently, Patrick Meier, PhD candidate at Tufts University and member of the Ushahidi Advisory Board, provided me with a dataset containing the first 72 hours of reports registered with Ushahidi in Port-au-Prince after the January 12th earthquake. First, a huge thank you to Patrick for providing me with this data and the opportunity to analyze

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