similar to: Nelson-Aalen estimator of cumulative hazard

Dear R-users, I am checking the proportional hazard assumption of a cox model for a given covariate, let say Z1, after adjusting for other relavent covariates in the model. To this end, I fitted cox model stratified on the discrete values of Z1 and try to get beslow estimator for the baseline cumulative hazard function (H(t)) in each stratum. As far as i know, if the proportionality assumption

Hi, I am taking a survival class. Recently I need to do the Nelson-Aalen estimtor in R. I searched through the R help manual and internet, but could not find such a R function. I tried another way by calculating the Kaplan-Meier estimator and take -log(S). However, the function only provides the summary of KM estimator but no estimated values. Could you please help me with this? I would

Dear all, Currently, I am doing a research project about serum sodium levels and falling. I am doing my analysis in R. I am performing the multiple imputation right now. I want to perform a survival analysis later, but therefore I need to specify the Nelson-Aalen estimator. My dataset is called DF1, the event indicator is Falls and the time variable is Time. The code that I use is as follows:

Hard to tell from the info you are giving us. I assume this regards the "mice" package? One way to proceed is to set options(error=recover) which will dump you into the browser() environment when the error occurs and you can oka around and see what the value of variables was at the point of the error. This could give you a clue about what is going on. -pd > On 22 May 2018, at 15:29

Hello , I am hoping for some advice regarding obtaining the values for the hazard function in a cox regression that I have undertaken. I have a model in the following form, analysed with the package survival (v. 2.34-1) and a log-log plot obtained using Design (v. 2.1-2). For two variables, the lines in the survival curves crossed. The statistician I been obtaining advice from (who does not

Dear useRs, I'm trying to estimate the proportion of individuals with a without a certain recurring ailment at several times points. The data are of the survival type, with "start"-"stop" dates and whether the individual had the ailment in that interval. Some cases are observed until database closure and some died or are lost to followup. The interest is not on death. I

?I've hit a roadblock debugging a new update to the survival package.?? I do debugging in a developement envinment, i.e. I don't create and load a package but rather? source all the .R files and dyn.load an .so file, which makes things a bit easier. ? Running with R -d "valgrind --tool=memcheck --leak-check=full" one of my test files crashes in simple R code a dozen lines

I haven't done any R memory debugging lately, but https://www.mail-archive.com/rcpp-devel at lists.r-forge.r-project.org/msg10289.html shows how I used to have gdb break where valgrind finds a problem so you could examine the details. Also, running your code after running gctorture(TRUE) can help track down memory problems. -Bill On Wed, Feb 7, 2024 at 12:03?PM Therneau, Terry M., Ph.D.

I've never seen this, and have no idea how to reproduce it. For resloution you are going to have to give me a working example of the failure. Also, per the posting guide, what is your sessionInfo()? Terry Therneau On 08/09/2012 04:11 AM, r-help-request at r-project.org wrote: > I have a couple of questions with regards to fitting a coxph model to a data > set in R: > > I have a

Hello everybody. First of all, I would like to present myself. I'm a french student in public health and I like statistics though I'm not that good in mathematics (but I try to catch up). I've discovered R recently while trying to find a statistical program in order to avoid rebooting my computer under windows when I need to do some statistical work. And here is my first question.

Hello all, Been having an issue today that I can't seem to solve, so reaching out to others much more knowledgeable for help/advice/assistance. I ran the software update this morning and installed 134 packages, clamd was one of the packages. Upon completion of the update, I needed to reboot the box. During bootup I got the following issue: Starting Clam AntiVirus Daemon: WARNING: Ignoring

Hello, I have a couple of questions with regards to fitting a coxph model to a data set in R: I have a very large dataset and wanted to get the baseline hazard using the basehaz() function in the package : 'survival'. If I use all the covariates then the output from basehaz(fit), where fit is a model fit using coxph(), gives 507 unique values for the time and the corresponding cumulative

I'm puzzled by such statements as diff /var/clamav/daily.cvd /var/clamav/daily.cvd.rpmnew Binary files /var/clamav/daily.cvd and /var/clamav/daily.cvd.rpmnew differ I thought the point of rpmnew files was so that we could check what has been changed? Anne -- New to KDE4? - get help from http://userbase.kde.org Just found a cool new feature? Add it to UserBase -------------- next part

Hi there, I was looking through examples of puppet recipes and came across: http://reductivelabs.com/trac/puppet/wiki/ClamAV I notice the exhaustive listing of each files properties and settings and wonder if there is a way to have a file inherit settings from other files? Ie instead of: file { "main_cvd": path => "/var/lib/clamav/main.cvd",

I fixed the country code issue but that did not resolve the problem. I also removed all files in /var/lib/clamav and reran freshclam (without rebooting), that also did not fix the problem. Jay > Am 15.07.2018 um 00:13 schrieb Jay Hart: >> ClamAV update process started at Sat Jul 14 15:10:48 2018 >> Using IPv6 aware code >> Querying current.cvd.clamav.net >> TTL: 1232

Hi, I am running CentOS Linux release 7.6.1810 (Core) with ClamAV installed. When i am running freshclam i am seeing a Warning message and the details are described below:- # freshclam ClamAV update process started at Thu Dec 13 11:49:18 2018 WARNING: Your ClamAV installation is OUTDATED! WARNING: Local version: 0.100.2 Recommended version: 0.101.0 DON'T PANIC! Read

>> >> Do other applications fail too? Do you have a network connectivity issue? >> >> Alexander >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> https://lists.centos.org/mailman/listinfo/centos >> > All other apps appear to be working fine. As far as I know I do not have a connectivity

Hi folks, Just updating clamav 'bundle' from old 'clamav-server' (i think the just previous) and i noticed that the 'clamav' user/group for this pkg is not created by default by the rpm pkg. At the same time, the /var/log/clamav is not updated/created with clamav.clamav ownership, Don't know if it is my actual config (previous one untouched anyway), but this is what

I have a very general question about what the centering option in basehaz does to factors. (basehaz computes the baseline cumulative hazard for a coxph object using the Breslow estimator). Lets say I'm interested in a survival model with two (dichotomous) factors and a continuous covariate. Variable Possible Values Factor1 0 or 1 Factor2 0 or 1

Hi everyone. There's been several threads on baseline hazard in Cox model but I think they were all on cumulative baseline hazard, for instance http://tolstoy.newcastle.edu.au/R/help/01a/0464.html http://tolstoy.newcastle.edu.au/R/help/01a/0436.html "basehaz" in package survival seems to do a cumulative hazard. extract from the basehaz function: sfit <- survfit(fit) H