similar to: Depot for S3 to S4 generics (as in stats4)?

Hello, sorry for not being clear enough. My problem is represented with the following code, running on OSX: mkdir ~/test ln -s ~/test ~/testlink touch ~/test/foo Rscript -e 'Sys.readlink(c("~/test/foo", "~/testlink/foo")); normalizePath(c("~/test/foo","~/testlink/foo"))' I expected `Sys.readlink` to show the same output as `normalizePath`. Also,

Hi, Is it possible to create a boot floppy that I can use to start iso's that use say syslinux ? Dave T.

Hello together, the function `Sys.readlink` uses the system's readlink command to resolve symlink paths. On OSX/BSD the command has a different meaning than on Linux [1]. There exists the tool 'realpath', which seems suitable for the task, at least applied at the command line level [2]. It is used in `normalizePath`. I suggest (at least the latter) to * use realpath instead readlink

Hello, I wrote a function to show the help/index page of a package in a browser (and want to include this in an update for a CRAN package). I asked in R-help how to obtain the 00Index.html file, Duncan Murdoch suggested to inspect (see http://r.789695.n4.nabble.com/Obtain-00Index-html-tt4697661.html) tools:::httpd (thank you therefore!). So I came up with: help.index <- function (pkg,

I stumbled on the following: > library(stats4) > example(mle) > confint.default(fit2) Error in UseMethod("vcov") : no applicable method for "vcov" In addition: Warning message: In object$coefficients : $ operator not defined for this S4 class, returning NULL > vcov(fit2) lymax lxhalf lymax 0.02857612 -0.04870231 lxhalf -0.04870231 0.11457338

Hi, I am trying to boot a liveCD thats on my hard disc ...is there a way of doing this using lilo ? reason well rather than keep burning to CD then testing I want to be able to make changes then test by booting to liveCD.... Thanks in advance Dave T..

Hi, Does anyone know of a good guide to installing distros to usb flash drives ....? I read this one but its making much sense http://www.damnsmalllinux.org/talk/node/86 Do I need to change drives in this manner for it to work ? Dave T.

Hi, I can get into basic shell (from linuxrc) but now I want to boot main system ... ie chroot into untar system & run from there ... but when I run /sbin/init 3 I get kernel panic wondered if /dev was set up .. if not how do I get it working ... sorry to so vague but its diffcult to describe what I want to do...... so to sum up I want to go from initrd (linuxrc) to log into console of

Hi, can I claim the warning that occurs (at R CMD check --as-cran) when I use 'library(ggplot2)' in executed vignette code as SPURIOUS (as mentioned in the CRAN policies at section 'Submission') and (since it is the only warning/error) get my package submission accepted? Has anybody experience with that? Otherwise, is there a workaround to evaluate this code (and calls to

Hi, I am trying to figure out a poor mans install ... I want to be able to boot CD iso thats on my hard disc .. There is an option to install via hard drive .. but I keep getting VFAT16 files system errors .. I know where copied iso image is ... I can boot kernel but linuxrc will not start LiveCD ... Maybe I could rewrite linuxrc to allow this but as it works from ram I am finding hard to

Hi, If needed, lapply() tries to convert its first argument into a list before it starts doing something with it: > lapply function (X, FUN, ...) { FUN <- match.fun(FUN) if (!is.vector(X) || is.object(X)) X <- as.list(X) .Internal(lapply(X, FUN)) } But in practice, things don't always seem to "work" as suggested by this code (at least to the

I am using mle as a wrapper from optim( ). How would I extract the convergence code, to know that optim( ) converged properly? Thanks, Stephen Collins, MPP | Analyst Global Strategy | Aon Benfield [[alternative HTML version deleted]]

Hi, I wantto use 'mle' function in R on linux. As I see its been integrated into the stats4 package. Am I correct ? If yes, Can anyone suggest how to install the stats4 package to be able to run 'mle' function in R on linux ? Otherwise how to sort out this problem ? Thanks Himanshu [[alternative HTML version deleted]]

hello , i am so sorry , i figure it out. im sending this msj to the moderator to stop the approval of the mail . have a good day. 2018-01-12 15:42 GMT+00:00 imane hajar <imane.chafiki.fst at gmail.com>: > hello, > Can you please give me a hand with this problem,well i can't install > these packages: > - stats > - methods > - stats4 > > when i tried the

Hi, We're using stats4 for a logistic regression. The code is chdreg.logit2 <- glm(chd ~ age + sex, family = binomial) summary(chdreg.logit2) oddsratios <- coef(chdreg.logit2) exp(oddsratios) # Calculate model predicted values pred <- predict(chdreg.logit2,type="response") The glm part runs fine, and up to now so has the predict function. However, now we're

Hi. Thank you very much in advance for your help. I have generated data from two simple linear models and used k-means clustering (stats4) to identify two clusters in the generated data. Next, I would like to do simple linear regression for each separate cluster. I can do this if I first use the cluster labels to define two separate data frames with the subset function. However, I would

Dear All, There are two things about mle() that I wasn't so sure. 1) can mle() handle vector based parameter? say ll<-function(theta=rep(1,20)){..............} I tried such function, it worked for "optim" but not for "mle". 2) is there a general suggestion for the maximum number of parameters allowed to use in mle() or optim()? Thank you. Regards, MJO

Hi there, I had a problem when I hoped to get confidence intervals for the parameters I got using mle() of stats4 package. This problem would not appear if ``fixed'' option was not used. The following mini-example will demo the problem: x <- c(100, 56, 32, 18, 10, 1) r <- c(18, 17, 10, 6, 4, 3) n <- c(18, 22, 17, 21, 23, 20) loglik.1 <- function(alpha, beta, c) { x

1. Unless there is a good reason not to, please always cc the list. As you note, I may misunderstand or just be too stupid, so you increase your chance of getting a good answer by ccing them, which I have done here 2. It looks like you need to install the multcomp package. Have you? Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and

I sent this in first on 30 July. Now that UseR! is over I'm trying again (slightly extended version from last time). With R 2.5.1 or R 2.6.0 (2007-08-04 r42421) "L-BFGS-B" behaves differently from all of the other optim() methods, which return the value of the function when they are given a trivial function (i.e., one with no variable arguments) to optimize. This is not a bug in