The Google Open Source Programs Office sponsored me to create the new int64 package that has been released to CRAN a few days ago. The package has been mentionned in an article in the open source blog from Google. The package defines classes i...
Posts Tagged ‘ cran ’
Rcpp reverse dependency graph
I played around with reverse dependencies of Rcpp. At the moment, 44 packages depend on Rcpp and the number goes up to 53 when counting recusive reverse dependencies. I've used graphviz for the representation of the directed graph Here is the c...
the Wang-Landau algorithm reaches the flat histogram in finite time
Pierre Jacob and Robin Ryder (from Paris-Dauphine, CREST, and Statisfaction) have just arXived (and submitted to the Annals of Applied Probability) a neat result on the Wang-Landau algorithm. (This algorithm, which modifies the target in a sort of reweighted partioned sampling to achieve faster convergence, has always been perplexing to me.) They show that...
Two-way CRAN
Sooner on later, every useR will manage to exhaust R’s built-in capabilities and land on CRAN looking for his dreamed needle in a haystack of 3k+ contributed packages. Probably most of you already know stuff like Task Views or rseek which make finding something relevant a bit easier than digging the full list or googling, however all...
rasterVis
The raster package defines classes and methods for spatial raster data access and manipulation. The new rasterVis package complements raster providing a set of methods for enhanced visualization and interaction. It is now at CRAN. Several examples can ...
solaR 0.24 at CRAN
The version 0.24 of solaR is at CRAN and R-Forge. Some days before the 0.23 version was uploaded, but I had to make a quick fix to readMAPA: the url of http://www.mapa.es/siar has been changed to http://www.marm.es/siar. Moreover, this function has been renamed to readSIAR, although it is still available as readMAPA. Consequently the...
another look at CRAN Task Views
We've been impressed with how helpful the CRAN Task Views are in guiding us in R as we wend our way through the huge number of add-on packages (3021 as of May, 2011). These are web pages that are maintained by volunteers with expertise in a specified ...
Importing RDF input in R for analysis
August last year I asked on BioStar about how to import RDF into the R statistical package and at the time nothing seemed existing. Over the past few weeks I ported code I wrote for Bioclipse to create the rrdf package for R, which is now available fro...
Exporting R graphics as LaTeX code – version 0.6.1 of the tikzDevice package is out
(Guest post on R-bloggers by Charlie Sharpsteen) Cameron and I are pleased to announce version 0.6.0 of the tikzDevice package which should be available shortly at your local CRAN mirror! The tikzDevice makes it possible to export R graphics as LaTeX code that can be included in other documents or compiled into stand alone...
Mixed models – Part 2: lme lmer
Getting more into mixed models, I’ve been playing around with both nlme::lme and lme4::lmer. http://tolstoy.newcastle.edu.au/R/e2/help/06/10/3345.html was quite a good post at explaining the differences, which from what I gather is largely performance based when using crossed or partially crossed models. In the models I am tinkering with at the moment I am noticing differences...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
