A new version of OpenMx is out; this time it comes with mixture distribution, according to this announcement. I can't wait to test the new features out!
Monthly Archives: December 2009
Announcing R-bloggers.com: a new R news site (for bloggers by bloggers)
I already wrote about R-bloggers on the R mailing list, so it only seems fitting to write about it more here. I will explain what R-bloggers is and then move to explain what I hope it will accomplish. R-Bloggers.com is a central hub of content collected from bloggers who write about R (in English) and if
R Function Usage Frequencies, Addendum
Since people have asked, here is a GitHub page with all of the code used to generate my R function usage analyses: cran-function-usage-analysis.
Abstract Data Type Operations in R
This morning, I got a chance to read enough of the R Language Definition to finish my implementations of push and pop. While I was at it, I also wrote implementations of unshift, shift, queue and dequeue. Here they are: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 push <- function(vector, item) { vector.lvalue.symbol <- substitute(vector) new.expression <- paste(vector.lvalue.symbol,
Happy 1st Birthday, Revolutions!
Wow, doesn't time fly! It's hard to believe that this blog is one year old already: our first post was on December 9, 2008. I remember when we first had the idea of doing a blog exclusively devoted to R that some wondered if there would be enough news about R to warrant daily updates, but with the community...
The top 5 R functions
John Myles White (who did the Canabalt scores analysis from last month) was trying to decide which R functions to spend time learning, and asked the obvious followup question: Which functions in R are used the most? With no readily-available answer, John answered the question himself, by counting the number of times each function is called in all the...
Colour matching feature in R
I love R. It is an open-source statistical programming language that I found reasonably easy to learn, and find it incredibly versatile and useful. Because it's open-source anyone can contribute to it, and there are a huge number of packages that exten...
Un-Wrapping a Sphere with R
Premise
I was recently asked to print out a fabric pattern that could be used to cover a sphere, about the size of a ping pong ball, for the purposes of re-creating a favorite cat toy (quite important). Thinking this over, I realized that this was basically a map projection problem-- and could probably be solved by scaling...
Package Update Roundup: Nov 2009
This is a list of new or updated packages that were released for R in November, as announced on the r-packages mailing list. To include other updates on this list, please email David Smith. For a complete list of all updates on CRAN, see the CRANberries archive for November 2009. Follow package name links for ratings and other information...
Sciviews
I was finally able to get Sciviews (most of it) work on my Linux machine. As before, I got some error message when opening the R terminal for the first time; by ignoring the error messages and manually install several "sv" packages locally (into my hom...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
