similar to: One more about Error in step() (or stepAIC) for Cox model

Hello all, I am trying to use stepwise procedure to select covariates in Cox model and use bootstrap to repeat stepwise selection, then record how many times variables are chosen by step() in bootstrap replications. When I use step() (or stepAIC) to do model selection, I got errors. Here is the part of my code for (j in 1:mm){ #<--mm=10 for (b in 1:nrow(reg.bs)){ #<--bootstrap 10

Hello all, When I ran my R program in R version 2.1.1 in windows XP and 2000, and I downloaded a package call "MIX", I got an application error: RGui:Rgui.exe - Application Error: The instruction at "0x1009d8a1" referenced memory at "0xbde48f58". The memory could not be "read". Click on ok to terminate the program click on cancel to debug the program

Release Announcements --------------------- This is a security release in order to address the following defects: o CVE-2019-12435 (Samba AD DC Denial of Service in DNS management server (dnsserver)) o CVE-2019-12436 (Samba AD DC LDAP server crash (paged searches)) Please note that Samba 4.9 is affected by CVE-2019-12435 only. ======= Details ======= o CVE-2019-12435:

Release Announcements --------------------- This is a security release in order to address the following defects: o CVE-2019-12435 (Samba AD DC Denial of Service in DNS management server (dnsserver)) o CVE-2019-12436 (Samba AD DC LDAP server crash (paged searches)) Please note that Samba 4.9 is affected by CVE-2019-12435 only. ======= Details ======= o CVE-2019-12435:

Greetings - We are running Dovecot 1.1.11 on our servers and have been gradually migrating people off our old (UW-based) systems onto the new (Dovecot-based) ones. As a result the new systems are seeing more connections from more people. We have started seeing problems reported by users of our webmail service that they are getting an error indicating the webmail software (Prayer) has failed to

Hi All, After using rsync on a couple of reasonably high-perfomance machines lately (and being very impressed - this solution is excellent) - I decided to use this for a backup method on a somewhat slower network - Basically I have two machines (one a PII with 64MB of ram), and another a PIII 600 (192MB of ram) - both running turbolinux server 6.5 with a nice 'n' stable

Hi, I am interested in decomposing a time series and getting the trend, seasonal and?irregular variations, as one can get with the "stl" command. My time series is fairly regular, but it has some breaks. From the zoo manual, I gather that it should be possible to convert it to a regular time series and then fill the NA entries by interpolation. I am not able to proceed beyond a certain

Hello, When i run the code below from Weibull distribution with 30% censoring by using optim i get an error form R, which states that Error in optim(start, fn = z, data = q, hessian = T) :? ? objective function in optim evaluates to length 25 not 1 can somebody?help me remove this error. Is my censoring approach correct. n=25;rr=1000 p=1.5;b=1.2 for (i in 1:rr){ q<-c(t,cen)

Hi, Found this in logfiles: Jul 25 14:12:38 dovecot: pop3(cen at so.red): Error: UIDL: File name lookup failed: Message was expunged Jul 25 14:12:38 dovecot: pop3(cen at so.red): Disconnected: POP3 UIDLs couldn't be listed top=187/356348, retr=0/0, del=0/1207, size=789346199 Jul 25 14:12:38 dovecot: pop3(cen at so.red): Panic: file ioloop.c: line 39 (io_add_file): assertion failed: (fd

Hi, there: It's my first time to post question in this forum, so thanks for your tolerance if my question is too naive. I am using a nonparametric smoothing procedure in sm package to generate smoothed survival curves for continuous covariate. I want to truncate the suvival curve and only display the part with covariate value between 0 and 7. The following is the code I wrote:

Hi, I'm analyzing a large number of large simulation datasets, and I've isolated one of the bottlenecks. Any help in speeding it up would be appreciated. `dat` is a dataframe of samples from a regular grid. The first two columns are the spatial coordinates of the samples, the remaining 20 columns are the abundances of species in each cell. I need to calculate the species richness in

Hi all - (this is posted to r-help and R-SIG-MAC) OSX 10.3.7, R 2.0.1, lme4/Matrix/latticeExtra latest, fresh install of R. MASS loaded (or not). I am getting an error message for the print() and summary() commands with all lme models I try and run in lme4 (GLMM's work fine). Using the example from the lme help, summary and print produce the following errors, despite the model being

http://bugs.freedesktop.org/show_bug.cgi?id=12435 --- Comment #8 from Pavel Roskin <proski at gnu.org> 2008-01-22 14:32:03 PST --- Seems to be fixed now. -- Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the QA contact for the bug. You are the assignee for the bug.

Dear list, i am a student of psychology and have to do a multilevelanalysis on some data. About that i have one general and one specific question. This is what i have copied from the help-file on lme: data(bdf) fm <- lme(langPOST ~ IQ.ver.cen + avg.IQ.ver.cen, data = bdf, random = ~ IQ.ver.cen | schoolNR) summary(fm) after summary(fm) i get the following error:

I would like to simulate a stochastic process by specifying an intensity function, say lambda(t)=0.05 + 3 exp(鈭抰) I have the following code, but it has a number of problems. One issue I have is I do not know where the time variable is. I would appreciate your help with this code. library("survival") n <- 5000 lamc<-0.08 k1<-0.05 k2<-3 ld<-function(t){k1+k2}

Hi, Got a new one on 2.2.13: Sep 19 04:11:39 moxi dovecot: imap(cen at cor.ed): Error: Log synchronization error at seq=3,offset=144 for /Maildir/.Spam/dovecot.index: Extension record update for invalid uid=494 Sep 19 04:11:39 moxi dovecot: imap(cen at cor.ed): Warning: fscking index file /Maildir/.Spam/dovecot.index Sep 19 04:11:39 moxi dovecot: imap(cen at cor.ed): Panic: file

http://bugs.freedesktop.org/show_bug.cgi?id=12435 --- Comment #12 from Riccardo Magliocchetti <riccardo at datahost.it> 2008-04-11 09:30:26 PST --- It loads very fast with latest git, still high on cpu while playing but from profiling there's no trace of swfdec over 1%, mostly cairo and pixman. I'd like to wait closing this until i've been able to profile with cairo 1.6.0.

Your function is giving NaN's during the optimization. The R-forge version of optimx() has functionality specifically intended to deal with this. NOTE: the CRAN version does not, and the R-forge version still has some glitches! However, I easily ran the code you supplied by changing optim to optimx in the penultimate line. Here's the final output. KKT condition testing Number of

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Would someone be able to help with this question? I'm using the Gcmrec, Survrec, and Design packages to do a power analysis on simulated data. I'm receiving an error after using the Survr function that all data must have a censoring time even after using the gcmrec function: newdata<-addCenTime(olddata). My program is below. I'd greatly appreciate any help!