similar to: Re: [R] na.omit (PR#610)

Why is it that when a vector contains no NAs, na.omit returns an empty vector rather than the object/vector that was passed to it? >na.omit(c(1,2,3,4)) numeric(0) in contrast ... >na.omit(c(1,2,3,NA)) [1] 1 2 3 attr(,"na.action") [1] 4 attr(,"na.action")attr(,"class") [1] "omit" Thanks, Alex --------------------------- platform

As described below, external network connections to the campus of the University of Wisconsin - Madison will be either inaccessible or slow from 20:00 CST 2000/01/03 until 01:00 CST 2000/01/04. CST is our local time zone: Central Standard Time in North America. These local times correspond to 04:00 - 07:00 GMT Tuesday 2000/01/04. This planned outage will affect the r-project.org, omegahat.org,

Hi, df <- read.table("data.txt", header=T); library(nls); fm <- nls(y ~ a*(x+d)^(-b), df, start=list(a=max(df->y,na.rm=T)/2,b=1,d=0)); I was using the following routine which was giving Singular Gradient, Error in numericDeriv(form[[3]], names(ind), env) : Missing value or an Infinity produced when evaluating the model errors. I also tried the

I did that. In fact the default uses .libPaths()[1], which I have set to "P:/stat/yandell/public/statgen/R" The package installs fine. However, the HTML search is not done properly. Again, the break occurred after installation of the package, when make.search.html() was invoked. Brian On Thu, 11 Mar 2004, Douglas Bates wrote: > Brian Yandell <byandell@wisc.edu> writes: >

So this is on Windows, then? This is documented somewhere (don't remember): If the package is not located under $R_HOME/library, then the html help will not be able to find it. Don't think there's a known work-around. Cheers, Andy > From: byandell@wisc.edu > > I did that. In fact the default uses .libPaths()[1], which I > have set to >

//Referring to the response posted many years ago, copied below, what is the specific criterium used for singularity of the gradient matrix? Is a Singular Value Decomposition used to determine the singular values? Is it the gradient matrix condition number or some other criterion for determining singularity? // //Glenn // / / /> What does the error 'singular gradient' mean

Dear Dr. Bates I replied to your email before but apparently it didn't make it so I am replying again. I would really appreciate if you could send me an example on how you suggest to build a cell means model for fixed effects using the NLME library. I am not sure whether you suggest to create a separate factor for each unique combination of levels of a factor or whether you suggest to

I am embarrassed to have to ask this but can anyone tell me of a Tukey multiple comparisons procedure available for R? I have looked through the search page, through the FAQ, and in the index of V&R (1999), and I still can't find such a thing. I see there is a ptukey function and a qtukey function but that is as far as I got. Do I need to roll my own? -- Douglas Bates

This may have been announced before but there are now both Debian GNU/Linux and RedHat Linux packages for R-0.61 on the CRAN archive sites. The master site for CRAN is http://www.ci.tuwien.ac.at/R/ That site provide a list of available mirror sites. Within the CRAN archive sites the pre-compiled packages for Linux are located in the bin/i386-linux directory. Under RedHat you can install

Brian Yandell <byandell@wisc.edu> writes: > Folks, > I am working on a Windows system which is part of the UW-Madison > statistics LAN. R is maintained on a file system to which I cannot write. > I tried installing a package and got the following interplay: Set the lib argument to install.packages to a directory in which you do have write permissions. From ?install.packages

I have recompiled the r-base package for Debian-2.0 with readline support. I still haven't determined why the configure script does not detect the readline library on one machine but does detect it on another where I compiled this. The package is available as ftp://franz.stat.wisc.edu/pub/R/bin/i386-linux/Debian-2.0/r-base_0.61.1-3_i386.deb and should appear on the other CRAN mirrors by

I just uploaded to CRAN a prototype nls (nonlinear least squares) library for R. It is far from being finished but I am asking for this preliminary version to be installed in the src/contrib/Devel section of CRAN so others can see the use of function closures to emulate the behaviour of objects in languages like Java. It will be a couple of days before the file is installed in CRAN and has a

I am trying to install a library for my linear models class. (The name "st849" comes from the course identification, Statistics 849.) # R INSTALL st849 Installing package `st849' ... funs data help >>> Building help index for package `st849' ... done. >>> Building help pages for package `st849' NONE:0: m4: ERROR: EOF in argument list RWC

mtext(..., outer = TRUE) does not seem to center the text in the outer margins as it did previously. Reproduce with example(plot.profile.nls, package = "nls") On versions of the development sources before November 17 this produced main and subtitles that were centered horizontally on the page. After that the main title (from mtext("..", side = 3, outer = TRUE)) is centered

With the assistance of Saikat DebRoy we have produced an nlme package (linear and nonlinear mixed-effects models) for R (see http://www.r-project.org/ for details about R). The nlme package for R requires R-0.90.0, which was released earlier today. Also released today was NLME 3.2 for S-PLUS. We will be working on incorporating the changes from NLME 3.1 to 3.2 into the R version but we wanted

With the assistance of Saikat DebRoy we have produced an nlme package (linear and nonlinear mixed-effects models) for R (see http://www.r-project.org/ for details about R). The nlme package for R requires R-0.90.0, which was released earlier today. Also released today was NLME 3.2 for S-PLUS. We will be working on incorporating the changes from NLME 3.1 to 3.2 into the R version but we wanted

I have installed the binary packages for Debian GNU/Linux release 2.3 (woody) in the U.S. mirror of the CRAN archive. They should propagate to the main CRAN archive within a day and to the other mirrors within two days. These packages have been compiled with gcc-3.0 and g77-3.0. I believe the testing distribution currently provides only a snapshot of gcc-3.0, not the latest released version, so

I have installed the binary packages for Debian GNU/Linux release 2.3 (woody) in the U.S. mirror of the CRAN archive. They should propagate to the main CRAN archive within a day and to the other mirrors within two days. These packages have been compiled with gcc-3.0 and g77-3.0. I believe the testing distribution currently provides only a snapshot of gcc-3.0, not the latest released version, so

While writing his '98 Interface paper Ross Ihaka was asking about the history of S so he could relate it to the history of R. I was looking at the Statistics and Information Analysis Division's web page at Bell Labs and went to their technical reports section http://cm.bell-labs.com/stat/doc/ Sure enough, there is a tech report by Rick Becker on "A Brief History of S".

>>>>> "Greg" == Greg Snow <snow at biostat.washington.edu> writes: Greg> Also is there a convenient way to run gdb on R through emacs? Greg> If I give it R.binary, it does not have the wrapper stuff from Greg> R and crashes, If I give it R it complains because it is not a Greg> binary, and if I do R -d then I don't get the emacs extras. Make