3899 search results for "Gis"

Making of elliplot package

September 28, 2013
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Making of elliplot package

The elliplot package is my first package for R.  So I want to write down details of making that, both for myself and for people following. original source The ellipseplot … Continue reading →

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Forecasting Using R: A new online course from Rob Hyndman

September 27, 2013
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Statistical forecasting is a critical component of every modern business, and Rob J Hyndman, Professor of Statistics at Monash University, is an expert in the field. He's the co-author of several books on forecasting, including Forecasting: Principles and Practice, a free on-line book that provides a comprehensive introduction to forecasting methods. You can implement all of the methods in...

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Things I Forget: Reading a Shapefile in R with readOGR

September 27, 2013
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Things I Forget: Reading a Shapefile in R with readOGR

One of the more common ways that I read vector data into R is via shapefiles.  I tend to use these partly becuase of my own sordid past with Arc/INFO, ArcView and ArcGIS and partly due to their ubiquity.  In any event I have found the R package, rgdal, indespensible for this.  One of the

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A Conversation with Hadley Wickham

September 26, 2013
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A Conversation with Hadley Wickham

Dr. Hadley Wickham is the Chief Scientist of RStudio and Assistant Professor of Statistics at Rice University. He is the developer of the famous R package ggplot2 for data visualization and the author of many other widely used packages like plyr and reshape2. On Sep 13, 2013 he gave a talk at Department of Statistics, Purdue University, and later I...

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R 3.0.2 and RStudio 0.9.8 are released!

September 26, 2013
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R 3.0.2 (codename “Frisbee Sailing”) was released yesterday. The full list of new features and bug fixes is provided below. Also, RStudio v0.98 (in a “secret” preview) was announced two days ago with MANY new features, including: Amazing new debugging …Read more »

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Construire un moteur de reco simple avec R (1/2)

September 25, 2013
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Construire un moteur de rechercheOn va montrer comment on peut construire un moteur de recommandation simple en utilisant les outils de Textmining. Cette construction se fera en deux temps : On construit un moteur de recherche pour identifier par exemple, dans...

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Forecasting with R

September 25, 2013
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The following video has been produced to advertise my upcoming course on Forecasting with R, run in partnership with Revolution Analytics. The course will run from 21 October to 4 December, for two hours each week. More details are available at http:/...

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Introducing imagemetrics

September 25, 2013
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Introducing imagemetrics

References In my recent projects, I had the opportunity to work with the professor Raphaël Proulx who introduced me to several metrics commonly used in landscape ecology for quantifying image texture. In order to make my life easier, I decided to implement...

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Creating your personal, portable R code library with GitHub

September 23, 2013
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Creating your personal, portable R code library with GitHub

As I discussed in a previous post, I have a few helper functions I’ve created that I commonly use in my work. Until recently, I manually included these functions at the start of my R scripts by either the tried and true copy-and-paste method, or by extracting them from a local file with the <code>source()</code> function. The former approach...

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Creating your personal, portable R code library with GitHub

September 23, 2013
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Creating your personal, portable R code library with GitHub

As I discussed in a previous post, I have a few helper functions I’ve created that I commonly use in my work. Until recently, I manually included these functions at the start of my R scripts by either the tried and true copy-and-paste method, or by extracting them from a local file with the <code>source()</code> function. The former approach...

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