Curving Normality » R-Sessions http://www.rensenieuwenhuis.nl "The extra-ordinary lies within the curve of normality" Thu, 10 Jun 2010 10:00:30 +0000 en hourly 1 http://wordpress.org/?v=3.0 Index of the R-Sessions http://www.rensenieuwenhuis.nl/index-of-the-r-sessions/ http://www.rensenieuwenhuis.nl/index-of-the-r-sessions/#comments Mon, 17 May 2010 10:00:19 +0000 Rense Nieuwenhuis http://www.rensenieuwenhuis.nl/?p=1209 http://www.rensenieuwenhuis.nl/index-of-the-r-sessions/feed/ 2 R Sessions 33: Select (nested) observations with equal number of occurences http://www.rensenieuwenhuis.nl/r-sessions-33-select-nested-observations-with-equal-number-of-occurences/ http://www.rensenieuwenhuis.nl/r-sessions-33-select-nested-observations-with-equal-number-of-occurences/#comments Wed, 23 Sep 2009 10:00:05 +0000 Rense Nieuwenhuis http://www.rensenieuwenhuis.nl/?p=1107 http://www.rensenieuwenhuis.nl/r-sessions-33-select-nested-observations-with-equal-number-of-occurences/feed/ 0 R-Sessions 32: Forward.lmer: Basic stepwise function for mixed effects in R http://www.rensenieuwenhuis.nl/r-sessions-32/ http://www.rensenieuwenhuis.nl/r-sessions-32/#comments Fri, 13 Feb 2009 10:59:03 +0000 Rense Nieuwenhuis http://www.rensenieuwenhuis.nl/?p=897 http://www.rensenieuwenhuis.nl/r-sessions-32/feed/ 6 R-Sessions 31: Combining lmer output in a single table (UPDATED) http://www.rensenieuwenhuis.nl/r-sessions-31-combining-lmer-output-in-a-single-table/ http://www.rensenieuwenhuis.nl/r-sessions-31-combining-lmer-output-in-a-single-table/#comments Thu, 05 Feb 2009 11:00:38 +0000 Rense Nieuwenhuis http://www.rensenieuwenhuis.nl/?p=891 http://www.rensenieuwenhuis.nl/r-sessions-31-combining-lmer-output-in-a-single-table/feed/ 1 R-Sessions 30: Visualizing missing values http://www.rensenieuwenhuis.nl/r-sessions-30-visualizing-missing-values/ http://www.rensenieuwenhuis.nl/r-sessions-30-visualizing-missing-values/#comments Thu, 08 Jan 2009 10:00:39 +0000 Rense Nieuwenhuis http://www.rensenieuwenhuis.nl/?p=872 It always takes some time to get a grip on a new dataset, especially large ones. The code-books are often as indispensable as they are massive, and not always as clear as one would want. Routings, and resulting and strange patterns of missing values are at times difficult to find. I found a nice way to plot missing values, using R. Basically, I thought it would be nice to calculate the percentage of missings on each variable, and do so for each year represented in the data. These numbers could be visualized using a levelplot(), which resulted in the graph below.]]> http://www.rensenieuwenhuis.nl/r-sessions-30-visualizing-missing-values/feed/ 0 R-Sessions 29: Running R-Project twice on Apple Mac OS X http://www.rensenieuwenhuis.nl/r-sessions-29-running-r-project-twice-on-apple-mac-os-x/ http://www.rensenieuwenhuis.nl/r-sessions-29-running-r-project-twice-on-apple-mac-os-x/#comments Mon, 24 Nov 2008 10:00:40 +0000 Rense Nieuwenhuis http://www.rensenieuwenhuis.nl/?p=835 http://www.rensenieuwenhuis.nl/r-sessions-29-running-r-project-twice-on-apple-mac-os-x/feed/ 1 R-Sessions 28: Impressive R Speeds http://www.rensenieuwenhuis.nl/r-sessions-28-impressive-r-speeds/ http://www.rensenieuwenhuis.nl/r-sessions-28-impressive-r-speeds/#comments Thu, 30 Oct 2008 10:00:22 +0000 Rense Nieuwenhuis http://www.rensenieuwenhuis.nl/?p=778 http://www.rensenieuwenhuis.nl/r-sessions-28-impressive-r-speeds/feed/ 3 The R-Sessions Forum: Introducing a new forum on R-Project http://www.rensenieuwenhuis.nl/the-r-sessions-forum/ http://www.rensenieuwenhuis.nl/the-r-sessions-forum/#comments Mon, 20 Oct 2008 10:00:55 +0000 Rense Nieuwenhuis http://www.rensenieuwenhuis.nl/?p=726 R-Sessions Forum: a new forum on R-Project and statistics in general. This new forum is closely integrated with , but has its own dynamic. The R-Sessions Forum aims at providing a flexible stage for visitors interested in discussing both R-Project and general statistics.

Topics & Features

The new R-Sessions Forum has several interesting features and covers many topics. Amongst the new topics covered are integration with the R-Sessions on Curving Normality, a section for general question on R, a section for general statistical questions, package specific questions, R development, and of course we have a pub for your general chatter. The integration with the R-Sessions is intended to give more dynamic ways of interacting with the Curving Normality web-site. The other topics are more general in nature and provide ample opportunity to pose your own questions and discuss those with other participants. ]]> http://www.rensenieuwenhuis.nl/the-r-sessions-forum/feed/ 2 R-Sessions 27: Text Editors for R: Textmate http://www.rensenieuwenhuis.nl/r-sessions-27/ http://www.rensenieuwenhuis.nl/r-sessions-27/#comments Thu, 16 Oct 2008 10:14:33 +0000 Rense Nieuwenhuis http://www.rensenieuwenhuis.nl/?p=686 TextMate, a paid application marketed as 'The Missing Editor for Mac OS X'. Designed explicitly for use by programmers on Mac OS X, TextMate makes a promising first impression. The interface looks very clean, text is rendered perfectly, and syntax colouring is provided for quite a large number of programming languages. Also, the colouring of the syntax looks very nice, by the use of light colours that don't interfere with reading the text.]]> http://www.rensenieuwenhuis.nl/r-sessions-27/feed/ 2 R Sessions 26: Text editors for R: Internal editor on OS X http://www.rensenieuwenhuis.nl/r-sessions-26-text-editors-for-r-internal-editor-on-os-x/ http://www.rensenieuwenhuis.nl/r-sessions-26-text-editors-for-r-internal-editor-on-os-x/#comments Mon, 06 Oct 2008 10:00:38 +0000 Rense Nieuwenhuis http://www.rensenieuwenhuis.nl/?p=654 Since R-Project is essentially syntax based, one needs a good text editor to write some code before it is executed in R. And, since we are all writing high quality code, we need a high quality text editor. This is the first in a series on text editors for using with R-Project on MacOSX. The first editor to look at, is the internal one. The Mac OS X version of R-Project comes with quite a strong, although basic, text editor.]]> http://www.rensenieuwenhuis.nl/r-sessions-26-text-editors-for-r-internal-editor-on-os-x/feed/ 0