search for: hess

Displaying 20 results from an estimated 238 matches for "hess".

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2013 Mar 10
0
Steepest Ascent Algorithm
...nction #w = 0 or 1 depending on whether they were censored or not #t is the suvival time #d is 0 if they were the control group and 1 if they were in the treatment group #theta is a vector of paramters (a,Bo, and B1 over which to maximize upon lordata[4,3] like<-function(theta,data,gcomp=FALSE,hesscomp=FALSE) { a = theta[1] Bo=theta[2] B1=theta[3] d=data[,1] #treatment w=data[,2] #censored t=data[,3] #survival time mu = (t^a)*exp(Bo+d*B1) l = sum(w*log(mu)-mu+w*log(a/t)) if(gcomp==TRUE) { grad=matrix(0,3,1) grad[1]=sum(w*log(t)-mu*log(t)+w/a) #alp...
2015 Jul 01
4
[PATCH 1/1] update error messages about moduli and primes files
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...
2013 Oct 24
5
Boot iPXE from syslinux/isolinux
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: &g...
2012 Sep 26
2
non-differentiable evaluation points in nlminb(), follow-up of PR#15052
...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 return NA values (assuming R < r60789, e.g. R 2.15.1), and also if both return +Inf values, nlminb steps to an NA parameter vector. Here is a really artificial one-dimensional example for demonstration: f <- function (x) { cat(...
2011 Dec 29
6
tftp with pxelinux.0 from syslinux 4.10-pre17
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
2010 Mar 12
2
Question regarding to maxNR
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 to solve this problem? Thanks, Kate [[...
2018 Mar 20
0
Struggling to compute marginal effects !
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: > Sorry, do not read "Inc_reliable_fromNTA" I did a mistake in the email I > sent you...
2005 May 27
2
nlminb to optmin
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 finite I know the final parameter estimates from S-Plus which I use as startin...
2019 Sep 06
2
[PATCH 1/1] log: do not print carriage return
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. V...
2015 Aug 05
2
[PATCH 1/1] document all hash algorithms available for key fingerprint display
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 d...
2008 Mar 15
1
again with polr
...> I(eta^2) + > uomo + > elem + > laurea + > saluteno + > extra > , > data = dfscale, > method = "probit", > Hess = T > ) now I've putted Hess=T in order to perform a summary on the estimate. I missed this option last time > try.op > Call: > polr(formula = as.ordered(sod.sit.ec.fam) ~ log(y) + log(1 + > nfiglimin) + log(1 + nfiglimagg) + log(ncomp - nfiglitot) + >...
2007 Nov 10
1
polr() error message wrt optim() and vmmin
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 "vmmin" as referenced...
2013 Oct 23
4
Should I upgrade Samba 3.6 to Samba 4.1
...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
2014 May 16
5
Mother board recommendation
Hello, I want to build a lightweight server and install centos. Does anyone have a recommendation for a suitable motherboard? Thank you, Joe
2013 Dec 03
1
Boot iPXE from syslinux/isolinux
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. > > > > > &gt...
2013 Oct 22
2
Boot iPXE from syslinux/isolinux
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 kern...
2013 Oct 04
5
Samba problem
...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...
2003 Sep 28
6
NAT/SIP solution?
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:
2001 Nov 28
2
Problems with rank()
...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 you declare a vector with the positive differences manually, it ranks them in the correct order. if you use rank(sqrt((y-x)^2), it produces the same mistake... Stephane Hess, Statslab Cambridge University -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subjec...
2015 Aug 05
2
[PATCH 1/1] uid for expansion in ControlPath
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...