similar to: A GLM for a parameter of the error distribution.

Dear R-Users, my objective is to measure the overlap/divergence of two probability density functions, p1(x) and p2(x). One could apply the chi-square test or determine the potential mixture components and then compare the respective means and sigmas. But I was rather looking for a simple measure of similarity. Therefore, I used the concept of 'intrinsic discrepancy' which is defined as:

Dear All, Is it possible to get confidence intervals for Harrell's concordance index or, equivalently, Somer's D using the rms package or in some other way ? I have survival data it would be the c-index in the Cox model setting Many thanks Dr Bernard North Statistical Consultant Statistical Advisory Service Advice and Courses on Research Design and Methodology Imperial College South

Dear R help My problem is very similar to the analysis detailed here. If we use the mayo dataset provided with the survivalROC package the estimate for Somer's Dxy is very negative -0.56. The Nagelkerke R2 is positive though 0.32. I know there is a difference between explained variation and predictive ability but I am surprised there is usch a difference given that even a non predictive model

Hi, I''m gradually moving my site''s config over to Puppet (still in the testing phases at the moment!). Is there any way of getting/referring to a host''s IP address? I want to set up iptables via Puppet, & can use a template but need to get the IP address into the template somehow. I''m getting my node definitions (& thus classes) from LDAP. I

Hi I have a panel dataset with large number of groups and differing number of observations for each group. I want to randomly select say, 20% of the groups or 200 groups, but along with all observations from the selcted groups (with the corresponding data). I guess it is possible to generate a random sample from the groups ids and then match that with the entire dataset to have the intended

Hi, I''m trying to set up apache2 under puppet, as in this recipe: http://reductivelabs.com/trac/puppet/wiki/Recipes/DebianApache2Recipe I have a file "apache2.pp" as shown there, and then a webserver.pp file (see below). On running puppetd on the client, I get this message: err: Could not retrieve configuration: Could not find definition site in file

Hi, I am having problems when trying to apply factor analysis in a covariance matrix, > factanal(covmat=strip1cmcd, factors=5, control=list(lower=0.0264)) Error in optim(start, FAfn, FAgr, method = "L-BFGS-B", lower = lower, : non-finite value supplied by optim In addition: Warning message: NaNs produced in: sqrt(diag(cv)) I have searched for possible solutions in

Hi I am an engineer and am running the package mgcv and specifically the command gamm (generalized additive mixed modelling), with random effects. i have a few queries: 1. When I run the command with 1000/2000 observations, it runs ok. However, I would like to see the results as in vis.gam command in the same package, with the 3-d visuals. It appears no such option is available for gamm in the

Hi, Is it possible to have an array as the output of a custom fact? And then to pass it into a template in Puppet? I currently have a fact that looks like this: Facter.add("exports") do setcode do case Facter.hostname when (/thishost/i): [ "/local", "/local2" ] end end end & a template like this: <%

Hi, I'm trying to cross-compile R to javascript so that it can run in a web-browser. Take as long as you need to stop laughing. So, as I was saying - I want to try and get a build of R running in the browser. [If you're not familiar with it already, you might enjoy looking at emscripten.org. It's a remarkably capable tool for translating LLVM bitcode to javascript. Check out some of

Dear All, I have been following the rsync discussion list for some time, particularly with reference to the rsync problems on Cygwin. From my understanding there are two (seperate) issues. 1) Rsync can wait indefinitely due to some form of child/signal handling problem (I imagine this can be a pain to get right for all the different platforms) 2) Long file names that are still within the

Hi all, I hope you'll forgive me - I don't plan to start using this list as my blog - but given the discussion following my last post I thought people on here might be interested to see some progress. This is a minimal build of R, cross-compiled from C/Fortran to javascript with emscripten - to be clear, nothing is running server-side, this is all running in the browser's JS engine.

Hi All, I have a parameter that is bimodal, and I want to get some sort of linear model done with it results = some.linear.function(bimodal.param ~ factor1 + some other stuff, mydata) I want to see if factor 1 matters (it has 3 levels, of of which can be taken as baseline), i.e: summary(results) Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) -2.108522

Hi there I have a problem with using Sweave in combination with the option driver = cacheSweave. Whichever code I try to run - when it comes to converting the tex file into pdf it comes up with the same errors (\csname \endcsname errors). Does anybody have an idea what it going wrong? > Sweave("pgfSweave-example.Rnw",driver = cacheSweaveDriver) Writing to file

My Emails a week or so back were about installing Rstudio and the R shiny server on Debian. I was using an old Toshiba laptop as a sandbox for that and it would only install i386 (same for Ubuntu). Using the information at https://cran.r-project.org/bin/linux/debian/ I did get to the point where I had R 3.5.2, Rstudio and the server on there (with some help from Dirk that is in the list archives).

Dear All, R Dev Day @ Imperial will take place on Friday 26 April at Imperial College London: https://pretix.eu/r-contributors/r-dev-day-imperial-2024/ This event is aimed at current or aspiring R contributors based in the UK. Unlike other contributor events, we may not have representation from the R Core Team, however it is a chance for interested folk to get together to learn more, or to work

"c" an extremely commonly-used function. Functions are first-class objects that occupy the same namespaces that variables do, so they can obscure each other. In short, don't use variables called "c" (R is case sensitive, so "C" has no such problem). Wherever possible, avoid incremental concatenation like the plague. If you feel you must use it, at least

On 11.07.2015 06:16, Gene Cumm wrote: > On Jul 10, 2015 5:29 PM, "poma via Syslinux" <syslinux at zytor.com> wrote: > >> The same as with the ISOLINUX, stable and git. >> Only this time has nothing to do with the menu. > > 1) EXTLINUX is no longer a discrete variant. The installer extlinux now > installs SYSLINUX. > 2) William Kensington already saw

On 02/22/2016 06:31 AM, Noel Butler wrote: >>>> https://github.com/dovecot/core/commit/53cc71cae88ee81fd7eae47aed743496f8c884a2 >>>> >>> [snip] >>> >>>> The PID-File seems to be expected under yet another sub-dir >>>> of /var/run/dovecot. >>> I wasn't aware that any Dovecot functionalities have become dependent

Posting for a friend Begin forwarded message: From: "Geier, Florian" <florian.geier08@imperial.ac.uk<mailto:florian.geier08@imperial.ac.uk>> Subject: Fwd: readBin fails to read large files Date: September 1, 2011 4:10:53 PM GMT+01:00 To: Begin forwarded message: Date: 1 September 2011 16:01:45 GMT+01:00 Subject: readBin fails to read large files Dear all, I am trying