Displaying 6 results from an estimated 6 matches for "dhat".
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2011 Sep 02
5
Hessian Matrix Issue
...a[j]<-log(1+((j-1)*(d-1))/mu)
#print(aa[j])
}
a[i]<-sum(aa)
#print(a[i])
}
a
arg3<-sum(a)
llh<-arg1+arg2+arg3
if(! is.finite(llh))
llh<-1e+20
-llh
}
ac<-optim(NegBin,par=c(xbar,dbar),method="L-BFGS-B",hessian=TRUE,lower=
c(0,1) )
ac
print(ac$hessian)
muhat<-ac$par[1]
dhat<-ac$par[2]
zhat<- 1+(log(dhat)/(1-dhat))
infor<-solve(ac$hessian)
var.dhat<-infor[2,2]
se.dhat<-sqrt(var.dhat)
var.muhat<-infor[1,1]
se.muhat<-sqrt(var.muhat)
var.func<-dhat*muhat
var.func
d.prime<-cbind(dhat,muhat)
se.var.func<-d.prime%*%infor%*%t(d.prime)
se.var.fun...
2006 Jun 18
1
bug with boot.sw98 function (PR#8999)
...om: (NULL) (84.9.38.207)
I'm using the FEAR library to perform Data Envelopment analysis with a 36,000
obs dataset.
The function dea is working fine but then when I try to use the boot.sw98 to
come up with some sensitivity analysis I get the following error:
boot.sw98(XOBS=x,YOBS=y,NREP=100,DHAT=dhat,RTS=3,ORIENTATION=2)
Error in 0:L : NA/NaN argument
In addition: Warning message:
longer object length
is not a multiple of shorter object length in: kappam * Gcounts
What does this mean? Is this because I have too many observations? What can I do
to fix it?
Please let me know if you...
2008 Sep 16
0
Maximum likelihood estimation of a truncated regression model
Hi,
I have a quick question regarding estimation of a truncation
regression model (truncated above at 1) using MLE in R. I will be most
grateful to you if you can help me out.
The model is linear and the relationship is "dhat = bhat0+Z*bhat+e",
where dhat is the dependent variable >0 and upper truncated at 1;
bhat0 is the intercept; Z is the independent variable and is a uniform
random variate between 0 and 1; and e is the error term. I realised
that R doesn't have a built-in function to estimate truncated
r...
2008 Jan 14
3
Spot the cyclical relationship
...the node:
node testing {
package { "iscsi-initiator-utils":
provider => rpm,
source => "/tmp/iscsi-initiator-utils-4.0.3.0-4.x86_64.rpm",
require => Exec["wget
http://osserver.dev.gridapp.com/osprov/media/Linux/RH-4.0-ES-U4-AMD64/Re
dHat/RPMS/iscsi-initiator-utils-4.0.3.0-4.x86_64.rpm -O
/tmp/iscsi-initiator-utils-4.0.3.0-4.x86_64.rpm"];
}
file { "/etc/iscsi.conf":
ensure => present,
source => "puppet:///files/clarity/iscsi.conf",
mode => 600,
require...
2005 Nov 28
1
Is samba or a kernel bug causing my FC4 server to crash?
...1 poseidon kernel: input: AT Translated Set 2 keyboard on isa0060/serio0
Nov 25 16:01:30 poseidon syslogd 1.4.1: restart.
Nov 25 16:01:30 poseidon kernel: klogd 1.4.1, log source = /proc/kmsg started.
Nov 25 16:01:30 poseidon kernel: Linux version 2.6.14-1.1637_FC4smp (bhcompile@hs20-bc1-4.build.re
dhat.com) (gcc version 4.0.1 20050727 (Red Hat 4.0.1-5)) #1 SMP Wed Nov 9 18:34:11 EST 2005
2012 Feb 25
9
[xen-unstable bisection] complete test-amd64-i386-rhel6hvm-amd
branch xen-unstable
xen branch xen-unstable
job test-amd64-i386-rhel6hvm-amd
test redhat-install
Tree: linux git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git
Tree: qemu git://xenbits.xen.org/staging/qemu-xen-unstable.git
Tree: qemuu git://xenbits.xen.org/staging/qemu-upstream-unstable.git
Tree: xen http://xenbits.xen.org/staging/xen-unstable.hg
*** Found and reproduced pr...