Thanks to a posting on R-sig-eco mailing list I learned of the IUCN-API. Here's a simple example for what can be done with it (output as pdf is HERE):require(XML)require(maptools)require(jpeg)input = "panthera-uncia"h <- htmlParse(paste("http://api....
R''s glm function for generalized linear modeling is very powerful and flexible: it supports all of the standard model types (binomial/logistic, Gamma, Poisson, etc.) and in fact you can fit any distribution in the exponential family (with the family argument). But if you want to use it on a data set with millions or rows, and especially with more...
In this video I show I to prepare a spectrum to import later into ChemoSpec:The software I use gives the option to export the spectrum as a TXT file.This file is open with Excel and saved as CSV, to import later with others into ChemoSpec.
This is probably an issue that has been addressed by many blog posts (including these ones: and ), and can be deduced from R Installation and Administration manual. However, I will post it here for future reference. The problem is that w...
A couple of days ago, I started to think about SAP HANA and R on Amazon Web Services...as far as I know, graphics can't get generated using this kind of integration because the graphic will get generated on the server and could not make the trip back i...
This post is a quick reminder that the next Cologne R user group meeting is only one week away. We will meet on 6 July 2012. The meeting will kick off at 18:00 with three short talks at the Institute of Sociology and will continue, even more informal, ...
I googled for this once upon a time and nothing came up. Hopefully this saves someone ten minutes of digging about in the documentation. You make identity matrices with the keyword diag, and the number of dimensions in parentheses. > diag(3) [,...
By now you've probably heard about the fact that Orbitz users accessing the site via Macs are seeing more expensive hotel options when they search. But it seems worth clearing up a couple of fallacies. First, it's not as if the same hotel room is being offered at a higher prices to Mac users. (So no, using Windows to...
PluginR has been updated in mods.tiki.org. So what? Do I need to update my PluginR? How can I do it? PluginR resides in a subversion (svn) repository in sourceforge.net. Files can be fetched at any time by anyone using svn (see details in http://de...
This article gives a brief overview of the data.table package written by M. Dowle, T. Short, S. Lianoglou. A data.table is an extension of a data.frame created to reduce the working time of the user in two ways programming time … Continue reading →
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
