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I am trying to code a steepest ascent algorithm to optimize parameters used in a survivor function type problem. My unknown parameters (alpha, Beta0, and Beta1) for which I have been able to optimize using Newton's method. I keep getting an error because my alpha becomes negative and I can't calculate the likelihood. Here is my log likelihood I am optimizing (in LaTex): l=\sum _{ i=1 }^{

From: Christian Hesse <mail at eworm.de> Both files can be used, so mention both in error messages. Signed-off-by: Christian Hesse <mail at eworm.de> --- dh.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/dh.c b/dh.c index 4c639ac..450f5c4 100644 --- a/dh.c +++ b/dh.c @@ -153,...

Christian Hesse <list at eworm.de> on Tue, 2013/10/22 13:14: > Christian Hesse <list at eworm.de> on Tue, 2013/10/22 12:56: > > Gene Cumm <gene.cumm at gmail.com> on Tue, 2013/10/22 06:35: > > > On Tue, Oct 22, 2013 at 5:41 AM, Christian Hesse <list at eworm.de> wrote: &gt...

This is a follow-up question for PR#15052 <http://bugs.r-project.org/bugzilla3/show_bug.cgi?id=15052> There is another thing I would like to discuss wrt how nlminb() should proceed with NAs. The question is: What would be a successful way to deal with an evaluation point of the objective function where the gradient and the hessian are not well defined? If the gradient and the hessian both

Hello everybody, setting up a netboot server for a really huge network I decided to go with what will be syslinux 4.10 to get support for http transfers. The setup works on my notebook, booting another notebook directly connected. However it fails with a more complex setup: A virtual machine on the second notebook bridged to the ethernet device does not boot, systems from other networks with a

Hi R-users, Recently, I use maxNR function to find maximizer. I have error appears as follows Error in maxNRCompute(fn = fn, grad = grad, hess = hess, start = start, : NA in the initial gradient My code is mu=2 s=1 n=300 library(maxLik) set.seed(1004) x<-rcauchy(n,mu,s) loglik<-function(mu) { log(prod(dcauchy(x,mu,s))) } maxNR(loglik,start=median(x))$estimate Does anyone know how

In that case, I can't work out why the first model fails but not the second. I would start looking at "Data" to see what it contains. if: object2 <- polr(Inc ~ Training ,Data,Hess = T,method = "logistic" ) works, the problem may be with the "Adopt" variable. Jim On Tue, Mar 20, 2018 at 10:55 AM, Willy Byamungu <wmulimbi at email.uark.edu> wrote: >

Hi! I want to convert S-Plus 6.2 code to R 2.1.0. Instead of the function nlminb I use the function optmin optmin(start,fn,gr,method="L-BFGS-B", lower, upper, hess,...) But then I get the Error in optmin ...: L-BFGS-B needs finite values of fn Then I used optmin(start,fn,gr,method="BFGS", hess, ...) But then I get the Error in optmin ...: initial value in vmmin is not

From: Christian Hesse <mail at eworm.de> Logging to stderr results in line endings being terminated with carriage return (\r) and new line (\n). While this is fine for terminals it may have undesired effects when running from crond and logging to syslog or similar. I run ssh from cron on an recent linux host. Vi...

From: Christian Hesse <mail at eworm.de> Signed-off-by: Christian Hesse <mail at eworm.de> --- ssh_config.5 | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/ssh_config.5 b/ssh_config.5 index 5b0975f..28f7714 100644 --- a/ssh_config.5 +++ b/ssh_config.5 @@ -649,9 +649,13 @@ The de...

hello everybody solved the problem with summary, now I have another one eg I estimate > try.op <- polr( > as.ordered(sod.sit.ec.fam) ~ > log(y) + > log(1 + nfiglimin) + > log(1 + nfiglimagg) + > log(ncomp - nfiglitot) + > eta + > I(eta^2) + >

Hi, I'm getting an error message using polr(): Error in optim(start, fmin, gmin, method = "BFGS", hessian = Hess, ...) : initial value in 'vmmin' is not finite The outcome variable is ordinal and factored, and the independant variable is continuous. I've checked the source code for both polr() and optim() and can't find any variable called

...t I still can't see the Samba share. I can ping the computer running Samba? I tried to launch "gpedit.msc" but this program was not there. Do you think it would work if I upgraded Samba to the latest version 4.1? Should I consider upgrading to Win7 professional? Thank you, Joe Hesse

Hello, I want to build a lightweight server and install centos. Does anyone have a recommendation for a suitable motherboard? Thank you, Joe

Christian Hesse <list at eworm.de> on Mon, 2013/11/11 18:41: > "H. Peter Anvin" <hpa at zytor.com> on Mon, 2013/11/11 08:09: > > On 11/11/2013 04:09 AM, Christian Hesse wrote: > > >> > > >> Let be know if you need any more info. > > > > > >...

Gene Cumm <gene.cumm at gmail.com> on Tue, 2013/10/22 06:35: > On Tue, Oct 22, 2013 at 5:41 AM, Christian Hesse <list at eworm.de> wrote: > > Hello everybody, > > > > iPXE builds an ISO image by default. (The build system has to be updated > > for new paths and to integrate ldlinux.c32, but that's not my problem.) > > > > With the binary syslinux files from kerne...

...CentOS ~]$ smbclient //CentOS/admin Enter admin's password: Domain=[WORKGROUP] OS=[Unix] Server=[Samba 3.6.9-151.el6_4.1] tree connect failed: NT_STATUS_ACCESS_DENIED My smb.conf file, below, is taken from the book I am using. Any suggestions or help would be much appreciated. Thank you, Joe Hesse [global] unix charset = UTF-8 dos charset = CP932 workgroup = WORKGROUP server string = CentOS netbios name = CentOS dns proxy = no wins support = no interfaces = 127.0.0.0/8 192.168.0.0/24 eth0 bind interfaces only = no log file = /var/log/samba/log.%m max log size = 1000 syslog only = no syslog...

Greetings, I was wondering if somebody is working on a solution to the NAT/SIP-issues? It seems to me that the problem has been identified, is that correct? Just hoping that someone with more skills will provide us with a solution sooner or later... Regards, Stig -------------- next part -------------- An HTML attachment was scrubbed... URL:

If you enter the following values for x and y: x: 2.2 3.7 2.1 0.4 2.8 0.3 0.4 1.4 5.4 6.0 y: 6.0 8.1 1.8 1.3 5.2 0.6 1.0 1.9 6.8 6.5 and do rank(abs(y-x)), you should get two ties, one at 0.3 and one at 0.5. R, and S-Plus5 by that matter recognise the tie at 0.5 and give it rank 3.5, but gives one of the two 0.3 values rank 1 and one of them 2, whereas they should boh be 1.5. Any suggestions? when

From: Christian Hesse <mail at eworm.de> Modern Linux systems create a private directory in /run/user/ for each user, named by user id. This adds a new character sequence '%i' for expansion in ControlPath to match thisi directory. Signed-off-by: Christian Hesse <mail at eworm.de> --- ssh.c...