2738 search results for "gis"

A new version of analogue for a new year

January 4, 2013
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A new version of analogue for a new year

Yesterday I rolled up a new version (0.10-0) of analogue, my R package for analysing palaeoecological data. It is now available from CRAN. There were lots of incremental changes to Stratiplot() to improve the quality of the stratigraphic diagrams produced … Continue reading →

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Pacific Decadal Oscillation and Brazilian Hydroelectricity generation

January 4, 2013
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In this post i want to introduce you to the so called Pacific Decadal Oscillation, or PDO for short. Just to give a short introduction to this huge (and complex) subject, the text below follows straight from Wikipedia. ...The PDO is a pattern of Pacif...

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Twitter Roundup, January 4 2013

January 4, 2013
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I've said it before: Twitter makes me a lazy blogger. Lots of stuff came across my radar this week that didn't make it into a full blog post. Here's a quick recap:PLOS Computational Biology: Chapter 1: Biomedical Knowledge IntegrationAssuring the quali...

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Function for Generating LaTeX Tables with Decimal Aligned Numbers

January 4, 2013
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Function for Generating LaTeX Tables with Decimal Aligned Numbers

The xtable package is tremendously useful for generating LaTeX tables from data frames. It is also pretty easy to customize the output to handle some special cases of LaTeX formatting. The xtable.decimal function will create a LaTeX table where numeric columns will be vertically aligned on the decimal point. In addition to specifying the LaTeX alignment code it...

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A new version of analogue for a new year

January 4, 2013
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Yesterday I rolled up a new version (0.10-0) of analogue, my R package for analysing palaeoecological data. It is now available from CRAN. There were lots of incremental changes to Stratiplot() to improve the quality of the stratigraphic diagrams produced and fix several annoying bugs. Also the definition of the standard error of MAT reconstructions was fixed; it...

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Genetic Algorithms with gaoptim package

January 2, 2013
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Two days ago i just submitted my first R package: gaoptim. For my surprise, the next day it was already living on CRAN. In this post i want to show you how to use gaoptim to perform a simple function maximization. This same task could be accomplished ...

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R code and data for book “R and Data Mining: Examples and Case Studies”

January 2, 2013
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R code and data for book “R and Data Mining: Examples and Case Studies”

R code and data for book “R and Data Mining: Examples and Case Studies” are now available at http://www.rdatamining.com/books/rdm/code. An online PDF version of the book (the first 11  chapters only) can also be downloaded at http://www.rdatamining.com/docs. Below are its … Continue reading →

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Polarisation and Mobilisation indicators

January 1, 2013
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Polarisation and Mobilisation indicators

This blog post makes available a set of indicators discussed in a forthcoming edition of Digital Icons. In brief, the script takes a text input and calculates polarisation and mobilisation indexes based on the number of pronouns featured.The hypothesised relationship between pronouns and polarisation is one discussed extensively by critical discourse analysts, social...

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Software engineer’s guide to getting started with data science

December 30, 2012
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Software engineer’s guide to getting started with data science

Many of my software engineer friends ask me about learning data science. There are many articles on this subject from renowned data scientists (Dataspora, Gigaom, Quora, Hilary Mason). This post captures my journey (a software engin...

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Misusage of the new shiny package: A nerdy drink tracker for your next party

December 30, 2012
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Misusage of the new shiny package: A nerdy drink tracker for your next party

Currently a lot of people are talking about the new shiny package. So I got curious and built an own, more or less useful app: A drink trackerThis app can be used to track how much someone drank and therefore it is very useful for every party, especial...

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