3612 search results for "GIS"

R: Mapping Super Typhoon Yolanda (Haiyan) Track

November 24, 2013
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R: Mapping Super Typhoon Yolanda (Haiyan) Track

After reading Enrico Tonini post, I decided to map the super typhoon Haiyan track using OpenStreetMap, maptools, and ggplot2. If mapping with googleVis was possible with 13 lines only, that can also be achieved with the packages I used; but because I p...

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rgbif changes in v0.4

November 21, 2013
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The Global Biodiversity Information Facility (GBIF) is a warehouse of species occurrence data - collecting data from a lot of different sources. Our package rgbif allows you to interact with GBIF from R. We interact with GBIF via their Application Programming Interface, or API. Our last version on CRAN (v0.3) interacted with the older version of their API -...

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Simudidactic

November 21, 2013
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swirl

(This article was first published on bayesianbiologist » Rstats, and kindly contributed to R-bloggers) auto·di·dact n. A self-taught person. From Greek autodidaktos, self-taught : auto-, auto- + didaktos, taught; + sim·u·late v. To create a representation or model of (a physical system or particular situation, for example). From Latin simulre, simult-, from similis, like; = (If you can get past the mixing of Latin and Greek roots) sim·u·di·dactic adj. To learn by...

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How to format plots for publication using ggplot2 (with some help from Inkscape)

November 20, 2013
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How to format plots for publication using ggplot2 (with some help from Inkscape)

The following is the code from a presentation made by Rosemary Hartman to the Davis R Users’ Group. I’ve run the code through the spin function in knitr to produce this post. Download the script to walk through here. First, make your plot. I am going to use the data already in R about sleep habits...

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Plugging hierarchical data from R into d3

November 20, 2013
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Plugging hierarchical data from R into d3

Here I show how to convert tabulated data into a json format that can be used in d3 graphics. The motivation for this was an attempt at getting an overview of topic models (link). Illustrations like the one to the right are very attractive; my motivati...

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Sending data from client to server and back using shiny

November 20, 2013
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Sending data from client to server and back using shiny

After some time of using shiny I got to the point where I needed to send some arbitrary data from the client to the server, process it with R and return some other data to the client. As a client/server programming newbie this was a challenge for me as I did not want to dive

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Art of Statistical Inference

November 20, 2013
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Art of Statistical Inference

(This article was first published on MATHEMATICS IN MEDICINE, and kindly contributed to R-bloggers) Art of Statistical Inference Art of Statistical Inference This post was written by me a few years ago, when I started learning the art and science of data analysis. It will be a good starter for the amateur data analysts. Introduction What is statistics? There...

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Penalizing P Values

November 19, 2013
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Penalizing P Values Ioannidis' paper suggesting that most published results in medical research are not true is now high profile enough that even my dad, an artist who wouldn't know a test statistic if it hit him in the face, knows about it. It has even...

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Analyze Facebook with R

November 19, 2013
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Analyze Facebook with R

Hello everybody! Today I found something very cool: There is a R package for mining Facebook. For Twitter there are different, but this is the first one really working well with Facebook. So I wanted to test it and was amazed about how easy it works. Setup: The first thing we need is a Facebook …

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Getting started with R, for Stata users

November 19, 2013
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Getting started with R, for Stata users

If you learned statistics using Stata software but have an interest in learning the R language, it's worth checking out R~Stata: Notes on Exporing Data by Princeton's Oscar Torres-Reyna. D-Lab's Laura Nelson provides an overview, but in short it's a collection of 30 PDF slides that introduces R for Stata users, and provides translation tables like the one below...

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