2775 search results for "gis"

R, an Integrated Statistical Programming Environment and GIS

November 27, 2014
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R, an Integrated Statistical Programming Environment and GIS

This article was originally published in Geoinformatics magazine. R is well known as a powerful, extensible and relatively fast statistical programming language and open software project with a command line interface (CLI). What is less well known is that R also has cutting edge spatial packages that allow it to behave as a fully featured Geographical Information System...

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Performing Logistic Regression in R and SAS

Performing Logistic Regression in R and SAS

Introduction My statistics education focused a lot on normal linear least-squares regression, and I was even told by a professor in an introductory statistics class that 95% of statistical consulting can be done with knowledge learned up to and including a course in linear regression.  Unfortunately, that advice has turned out to vastly underestimate the

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Registration now open for Master R Developer workshop in San Francisco

September 29, 2014
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Registration now open for Master R Developer workshop in San Francisco

Registration is now open for the next Master R Development workshop led by Hadley Wickham, author of over 30 R packages and the Advanced R book. The workshop will be held on January 19 and 20th in the San Francisco bay area. The workshop is a two day course on advanced R practices and package

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LAST CHANCE TO REGISTER FOR EARL (15-17 September, London)

September 4, 2014
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LAST CHANCE TO REGISTER FOR EARL (15-17 September, London)

The EARL Conference www.earl-conference.com is  just over a week away. EARL is the first conference dedicated to the commercial usage of R. If you want to see how a host of leading companies are using and implementing R and hear from R gurus such as Hadley Wickham, Matt Dowle, Romain Francois and Tal Galili, then don’t miss out The remaining tickets...

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Interactive visualization of non-linear logistic regression decision boundaries with Shiny

Interactive visualization of non-linear logistic regression decision boundaries with Shiny

(skip to the shiny app) Model building is very often an iterative process that involves multiple steps of choosing an algorithm and hyperparameters, evaluating that model / cross validation, and optimizing the hyperparameters. I find a great aid in this process, for classification tasks, is not only to keep track of the accuracy across models, »more

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Last chance to register for the R in Insurance conference

June 30, 2014
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Last chance to register for the R in Insurance conference

The registration for the 2nd R in Insurance conference at Cass Business School London will close this Friday, 4 July. The programme includes talks from international practitioners and leading academics, see below. For more details and registration visi...

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Example 2014.7: Simulate logistic regression with an interaction

June 24, 2014
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Example 2014.7: Simulate logistic regression with an interaction

Reader Annisa Mike asked in a comment on an early post about power calculation for logistic regression with an interaction. This is a topic that has come up with increasing frequency in grant proposals and article submissions. We'll begin by showing how to simulate data with the interaction, and in our next post...

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Early Bird Registration for the EARL Conference closes tomorrow (Friday 30th May)

May 29, 2014
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Early Bird Registration for the EARL Conference (Effective Applications of the R Language) closes tomorrow, Friday 30th May. The EARL conference will be held in London on the 15-17th September 2014   EARL is the first cross-sector conference dedicated to the business usage of R and features presentations from over 45 R experts and practitioners.  For further information and to purchase early...

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Early bird registration for R in Insurance ends tomorrow

May 29, 2014
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Early bird registration for R in Insurance ends tomorrow

The early bird registration offer for the 2nd R in Insurance conference, 14 July 2014, at Cass Business School ends tomorrow.This one-day conference will focus once more on applications in insurance and actuarial science that use R, the lingua franca f...

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R GIS: Function to Reverse KML Paths

May 3, 2014
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This is a function I wrote up for reversing KML-paths. The paths within a KML can partially matched by their name-tags## name: ReverseKmlPath ## use: Reverser a KML-path by matching its ## arguments: PATH_TO_DOC...

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