3013 search results for "gis"

CFP: the 11th Australasian Data Mining Conference (AusDM 2013), submission due 15 July

April 3, 2013
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CFP: the 11th Australasian Data Mining Conference (AusDM 2013), submission due 15 July

********************************************************************* The 11th Australasian Data Mining Conference (AusDM 2013) Canberra, Australia, 13-15 November 2013, http://ausdm13.togaware.com Join us on LinkedIn: http://www.linkedin.com/groups/AusDM-4907891 ********************************************************************* Data mining, the art and science of intelligent analysis of (usually large) data sets for meaningful (and previously unknown) … Continue reading →

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R Beginners – Plotting Locations on to a World Map

April 2, 2013
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R Beginners – Plotting Locations on to a World Map

This post is targeted at those who are just getting started plotting on maps using R.The relevant libraries are: maps, ggplot2, ggmap, and maptools. Make sure you install them.The Problem Let's take a fairly simple use case: We have a few points on the...

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Installing, Loading, and Detaching R Packages

April 1, 2013
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To install a package in R, the function to be used is install.packages. Let say we want to install the ggplot2 package, well simply code this withTo install more than one package, we do this byNote that in executing the above codes, a dialogue box...

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A nifty line plot to visualize multivariate time series

April 1, 2013
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A nifty line plot to visualize multivariate time series

A few days ago a colleague came to me for advice on the interpretation of some data. The dataset was large and included measurements for twenty-six species at several site-year-plot combinations. A substantial amount of effort had clearly been made to ensure every species at every site over several years was documented. I don’t pretend

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To plot them is my real test

March 31, 2013
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To plot them is my real test

I almost couldn’t bring myself to post this, but it’s April Fools’ Day, so I’ll never have a better opportunity. This Gist shows how to scrape “stats” and .PNG images from, erm, Bulbapedia, run a simple dimensionality reduction on those “stats,” and plot all 151 original Pokemon. I don’t know much about Pokemon, so I can’t vouch for...

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R and the last comma

March 31, 2013
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In R, every comma matters. When creating a vector, c(1, 2, 5) will do the right thing, but add one unfortunate comma and c(1, 2, 5,) will greet you with a deadly Error in c(1, 2, 5, ) : argument 4 is empty. Other languages like Perl are less strict when defining basic data structures: having a comma after...

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Importing Data to R

March 30, 2013
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There are number of ways in importing data into R, and several formats are available,From Excel to R From SPSS to RFrom Stata to R, and more hereIn this post, I'm going to talk about importing common data format that we often encounter, such as Excel, ...

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RSAGA: Getting Started

March 30, 2013
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RSAGA provides access to geocomputation capabilities of SAGA GIS from within R environment. Having SAGA GIS installed is a (quite obvious) pre-requirement to use RSAGA. In Linux x64 sometimes additional preparations are needed. In Linux SAGA as we...

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More ordinal data display

March 30, 2013
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More ordinal data display

The past two weeks I made a post regarding analyzing ordinal data with R and JAGS. The calculations in the second part made me realize I could actually get top two box intervals out of R. This demonstrated here. For that I needed the inv...

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Entering Data to R

March 30, 2013
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To enter data into R, two common and easy to use R functions are utilized.The concatenate function, c; and,The data.frame function.The concatenate function, c, is use for combining data points into a single numeric R object. The usage of this function ...

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