similar to: how to unbreak a circular package dependence (S4 class data)

I am serializing a data object (FooData) into an ActiveRecord column (Foo). I''d like to be able to do delegate methods to the data class if the Foo class doesn''t have that attribute. So instead of: f = Foo.new f.data.item1 I''d like to do: f = Foo.new f.item1 I was hoping that I could add a method_missing method to my Foo class and call methods in the FooData class

I have never used -> but I noticed at http://github.com/jiho/r-utils/blob/master/beamer_colors.R that some people do. In fact, the above-named code has a sort of elegance about it (except for the use of "=" for assignment...). To my eye, -> calls to mind a type of assignment that is meant to stand out. For example, perhaps it would make sense to use -> to assign

Hi. I'm not having any luck installing the binary for the new Macintosh OS called "Tiger". I get error messages as below. Can anyone offer me some advice? (PS: I checked the bug list first but a search on "Tiger" turned up nothing so I hope it's OK to post here.) Error in dyn.load(x, as.logical(local), as.logical(now)) : unable to load shared

[R-devel'ers: spill over from R-core .. -- MM] >>>>> "KH" == Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at> writes: >>>>> Robert Gentleman writes: >> In preparing the next Windows release I want to make opening up >> system data files (and their documentation) more transparent. I >> would really like to adopt the

I've been using (and loving) R for quite a while now, but I have to admit that something simple is still stumping me. The question is how I can control the box within which a plot is drawn, in cases where I'm controlling the aspect ratio with the "asp" argument. The problem comes up in pdf() and png() output formats, but also with interactive windows, and so I'll

Hi all, I'm curious if anyone has coded an Expectation-Maximization algorithm that could help me model some circular data I have. I'd like to model it as a mixture of uniform and Von Mises centered on 0, so the only free parameters is the mixing proportion and the kappa of the Von Mises. I couldn't find anything in the contributed packages that seemed to suit this purpose. Any

howdy R friends, I'm new but I used to play with S+ a long time ago. Can someone please help me with how to approach this? I have some response time data I want to 'correlate' with other data. I believe queueing is involved so I need to prove somehow (F test?) that response ~ exponential(...) How do I go about this? I cant find exponential in 'nlm' or other functions.

QUESTION: how should I do a linear regression in which there are errors in x as well as y? SUPPLEMENT: I've seen folks approach this problem by computing eigenvectors of the covariance matrix, and that makes sense to me. But I'm wondering if this has a "pedigree" (i.e. if it makes sense to folks on this list, and if it's something that has been published, so I can refer to

Q: When R does 'plot()' in a context that yields boxplots, is there a way to force it to draw something even if there are only 1 or two data in the category? I'd like for it to draw the data, perhaps using the outlier symbols. My code is (*** marks the line in question) is the following, for R-1.0.0: d <- read.table("nserc-results-pgsb", header=FALSE,

I'm new to R (and to S) and am wondering about code from pages 72 and 83 of MASS (Venables+Ripley, 3rd edition), to draw an envelope on a QQ plot. Copying from the book, I've got: #... code whose gist is "a.fit <- nls(..." num.points <- length(resid(a.fit)) qqnorm(residuals(a.fit)) # illustrate data-model residuals qqline(residuals(a.fit)) samp <-

Full_Name: Dan Kelley Version: 1.9.0 OS: OSX (Darwin 7.3.0) Submission from: (NULL) (129.173.23.36) R-1.9.0 will not compile on Apple OSX (Darwin kernel 7.3.0). The error msg starts as follows, and has several more errors. gcc -dynamiclib -L/sw/lib -L/usr/local/lib -install_name /Library/Frameworks/R.f ramework/Versions/1.9.0/Resources/bin/libRlapack.dylib -o libRlapack.dylib dlapa ck0.lo

I've rolled up R-1.7.1.tgz a short while ago. This is a patch version mainly fixing up an assortment of issues (see below). Note also that it comes with an updated set of recommended packages, fixing a couple of nasty issues in at least foreign and nlme. You can get it from http://cran.us.r-project.org/src/base/R-1.7.1.tgz or wait for it to be mirrored at a CRAN site nearer to you. Binaries

I've rolled up R-1.7.1.tgz a short while ago. This is a patch version mainly fixing up an assortment of issues (see below). Note also that it comes with an updated set of recommended packages, fixing a couple of nasty issues in at least foreign and nlme. You can get it from http://cran.us.r-project.org/src/base/R-1.7.1.tgz or wait for it to be mirrored at a CRAN site nearer to you. Binaries

Full_Name: Dan Kelley Version: 1.9.0 OS: Fedora Core 2 Test 2 Submission from: (NULL) (142.177.39.160) Pasted below is part of the output from ./configure && make on Fedora Core 2 Test 2. I am not sure what else to try, but if there are tests that might help, I'd be very happy to do them. (Note: this OS is pretty fresh, just having been released a few days ago. This is the

Q: Has anyone implemented cartograms [**] in R? A search on the R site turned up https://stat.ethz.ch/pipermail/r-sig-geo/2005-December/000698.html which led to http://www.okada.jp.org/RWiki/index.php?cmd=read&page=Rmap%A4%F2%BB% C8%A4%C3%A4%BF%C3%CF%BF%DE%C9%BD%BC%A8&word=Rmap#content_1_35 which has (one form of) a cartogram as a PNG, but which doesn't seem to have code. (The

First, let me join the chorus of praise for R. (Hey, isn't somebody going to analyse all these praise emails in some statistical way?) I'm writing to point out an error in the file permissions in the linux/redhat version. (I'm using R-base-1.0.0-1.i386.rpm, by the way.) The permissions in /usr/lib/R/doc/html aren't correct, since 'function.html' and

Full_Name: Dan Kelley Version: 2.2.1 OS: Mac OSX Submission from: (NULL) (129.173.23.36) I'm having difficulties getting R_alloc() to work on a 64-bit Mac running R 2.2.1 installed via a .dmg file obtained from the R site. Details are given below, in a level of detail that I hope is appropriate. My eye was particularly drawn to line #2 in the gdb 'where' output, but line #1 seems

Begin forwarded message: > From: Dan Kelley <Dan.Kelley at Dal.Ca> > Date: March 19, 2004 12:00:01 PM AST > To: Don MacQueen <macq at llnl.gov> > Subject: Re: [R] osx/fink: cannot do "R INSTALL" (library mixup) > > That works perfectly! THanks. I did > 524 export PKG_LIBS="-L/usr/local/lib -L/sw/lib" > 525 R INSTALL pspline > and

Hi all, Looking to calculate the expected mean and variance of a ratio distribution where the source distributions are gaussian with known parameters and sample values are correlated. I see (from wikipedia: http://en.wikipedia.org/wiki/ Ratio_distribution#Gaussian_ratio_distribution) that this calculation is quite involved, so I'm hoping that someone has already coded a function to

Hi all, I have created forest plots using the package "meta" that I submitted as pdf for publication. I just received an email from the editor asking me if I could send these files in an Excel or MS Word format such that they can treat them as tables with box plots. I am not sure if I can do this... Is this possible? I've tried the capture.output command, but I get a blank MS Word