similar to: Off-line help.

I have a vague recollection of seeing reference, fairly recently, to a function that forms a single factor which ``codes'' the interaction between two (or more?) factors. Do I recollect correctly? It would be easy enough to roll one's own, but if there is an existing function it probably does a much cleverer job than I would do. cheers, Rolf Turner rolf at math.unb.ca

I'm getting flummoxed when trying to putting a tilde (``~'') --- as in a formula --- into an R documentation file, or rather in getting one to appear in the *.dvi output that results from converting a *.Rd file. In my *.Rd file I wrote an expression of the form \code{cbind(x,y) ~ z} This shows up in the appropriate way in the plain text help, and in the html help. But if I do R

This question has little or nothing to do with R; as usual I'm simply hoping to take advantage of the great depth of knowledge and expertise in the R community. Anyone who is interested in replying should send email directly to me (rolf at math.unb.ca) and not to this list. To get to my question: In a two person zero-sum game, the value of the game to the row player is v_r = max min

Just now I again had occasion to want nested describe lists in a documentation file. I found that the bug which I reported on 18 October, 2001 still persists. I checked on the bug report at the R web page, and found that the notes say ``Not a problem in R 1.4.0 (2001-12-08)''. Well, it's still a problem for me --- using R 1.4.1. (Details: platform sparc-sun-solaris2.7 arch

Thanks to Rolph Turner and Jason Turner ... I guess I was too excited about getting back on the list after an absense of several years ... I'll be a little more thoughtful about the problem before posting next time, and a little less trigger-happy with the "Send" e-mail button. Never-the-less, much appreciated. - Mohamed -----Original Message----- From: Rolf Turner

My google search for Plackett's Algorithm didn't return too much except that Plackett's algorithm appears to be useful in Control Theory - it is elaborated as "Plackett's algorithm for on-line recursive least squares estimation". Sounds something like what I want. I am looking at developing a user modelling type app (new data points coming in and wanting to dynamically

The Department of Mathematics and Statistics at the University of New Brunswick, Fredericton, N. B., Canada, is advertizing a tenure track position in Statistics, starting 1 July 2003. Please see http://www.math.unb.ca/job-stat.html for details. cheers, Rolf Turner rolf at math.unb [My apologies to those who receive multiple copies of this email.]

This posting has nothing to do with R (except maybe that I am using R very heavily in writing the paper to which the question pertains.) I simply wish to draw upon the impressive knowledge and wisdom of the R community. Since this question is way off topic, if anybody has the urge to reply, they should probably email me directly: rolf at math.unb.ca rather than via this list. My question

Apologies for the off-topic question; as usual I'm trying to draw upon the unparalleled knowledge and sagacity of the r-help list. Please reply off-list if you can help me out. A collaborator of mine found a formula we need, on sheets which he had photocopied out of a book, some years ago. He cannot remember which book (he's getting to be as senile and forgetful as I am, poor bloke!).

A student (at another university) has contacted me for advice about a good text dealing with the general linear model (which she needs to know about for her thesis defense). [One might say that if she used the GLM in her thesis she ***ought*** to know about the concept already, but ought to and does are very different, so ne'er mind.] The lady is an engineering student so I guess she'd

I have just installed R version 2.14.0 and tried to re-build and re-check some of the packages that I maintain. I'm getting a warning (in the process of running R CMD check on my "deldir" package): > * checking PDF version of manual ... WARNING > LaTeX errors when creating PDF version. > This typically indicates Rd problems. > LaTeX errors found: > ! Font

I've built R functions to ``effect'' a particular distribution, and would like to find out if that distribution is already ``known'' by an existing name. (I.e. suppose it were called the ``Melvin'' distribution --- I've built dmelvin, pmelvin, qmelvin, and rmelvin as it were, but I need a real name to substitute for melvin.) The distribution is really just a toy

Dimitris Rizopoulos wrote: > look at ?rowMeans; you can also use "apply(mat, 1, mean)" but > rowMeans() is better. By my reading of the question, this is not what Ezhil wants. He said: ``I have a 992 x 74 matrix. I would like to form a new matrix by averaging each 4 rows from the original one.'' I.e. he wants (I think) the first row of the new matrix to be the

Dear friends, Over the past weeks, I have been asking a lot of questions about how to use R in Bayesian analysis. I am brand new to R, but I am very pleased with it. I started with winbugs but I found winbugs to be a limited software, not bad but has several limitations. By contrast, R allows the analyst to tackle any problem with a huge set of tools for any kind of analysis. I love R. In

I mis-spoke. It seems I had two collections of functions in the same directory. One by Colin Goodall, and one by David Scott (I have no record of where he is/was located). It is the *latter* collection that does all its work from within Fortran. I'll have another look at what Colin Goodall actually wrote to see if it could be useful to guarav. cheers, Rolf Turner rolf at

Quick summary: - I got command line editing to work (thanks to all who responded to me), - but now my ``m'' key won't work in R (??!!??!!??), - and I can't find how to get command-line editing to use vi syntax. More detail: This posting consists of (1) a summary and thanks, and (2) some new questions. Summary and thanks: =================== I was having trouble

This has nothing to do with R as such; I'm simply trying to exploit the vast resource of knowledge and expertise that resides in the R community. For my sins, I am teaching a course on Game Theory this term. Game Theory I know from ***nothing***. I am trying to learn the subject as I go along, staying perhaps half a step in front of the students. I am having considerable difficulty with

A colleague here at U.N.B. has provided a counter example for me. So the conjecture (that the existance of the ``product limit'' is implied by the existance of the limits involving the first three powers) is false. If anyone is interested in the details, they should contact me off-list. My apologies for confusing everyone with my initial mis-statement of the problem. cheers,

If one specifies new options in a package, using the options() function, where does/should one document these new options? E.g. suppose that I put the line options(melvin=42) in a file zzz.R in the R directory of the package source, where the package contains functions foo(), bar(), clyde(), and irving() which all query options("melvin") and take some action based on the value of

I've looked through the FAQ and can't find anything about this. I'm working on a Sun machine, running Solaris 2.7. I'm a new R-user; have been using Splus for millenia, and finally decided it was time I got going with R. So I downloaded R, installed it, fiddled about a bit, and found that command-line editing was absent. Scrounging through the documentation some more, I saw it