Displaying 5 results from an estimated 5 matches for "a_hat".
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b_hat
2006 Mar 20
1
ARC cache issues with b35/b36; Bugs 6397610 / 6398177
> Bug ID: 6398177
> Synopsis: zfs: poor nightly build performance in 32-bit mode (high disk activity)
Part of the problem appear to be these kmem_caches:
# mdb -k
...
> ::kmastat
cache buf buf buf memory alloc alloc
name size in use total in use succeed fail
------------------------- ------ ------ ------ ---------
2009 Jul 30
0
Constrained MLE of fixed mean Singh-Maddala distribution
...alues for initial guess of the parameters.
a_guess<-2
b_guess<-3
q_guess<-7
q_guess-1/a_guess
p0<-c(log(a_guess), log(b_guess), log(q_guess))
#Optimize to find minimum of the negative likelihood function
est_p_A<-optim(par=p0, fn=neg.LL_sinmad, y=y)
est_p_A$par
a_hat1<-exp(est_p_A$par[1])
b_hat1<-exp(est_p_A$par[2])
q_hat1<-exp(est_p_A$par[3])
q_hat1-1/a_hat1
est_p_B<-nlm(f=neg.LL_sinmad, p=c(est_p_A$par[1], est_p_A$par[2],
est_p_A$par[3]), print.level=1, y=y)
a_hat<-exp(est_p_A$par[1])
b_hat<-exp(est_p_A$par[2])
q_ha...
2009 Jul 31
0
MLE estimation of constrained mean Singh-Maddala distribution
...E))))
}
#Set values for initial guess of the parameters.
a_guess<-2
b_guess<-3
q_guess<-7
q_guess-1/a_guess
p0<-c(log(a_guess), log(b_guess), log(q_guess))
#Optimize to find minimum of the negative likelihood function
est_p_A<-optim(par=p0, fn=neg.LL_sinmad, y=y)
est_p_A$par
a_hat1<-exp(est_p_A$par[1])
b_hat1<-exp(est_p_A$par[2])
q_hat1<-exp(est_p_A$par[3])
q_hat1-1/a_hat1
est_p_B<-nlm(f=neg.LL_sinmad, p=c(est_p_A$par[1], est_p_A$par[2],
est_p_A$par[3]), print.level=1, y=y)
a_hat<-exp(est_p_A$par[1])
b_hat<-exp(est_p_A$par[2])
q_hat<-exp(est_p_A$par[...
2007 Jul 12
4
VMGL?
Has anyone gotten this working? It seems it is a toolkit to allow guest OSes
to have native speed OpenGL rendering. It might it be a good inclusion for
Indiana. (To enable people to test it out in a VM.)
http://www.cs.toronto.edu/~andreslc/vmgl/
--Brian
P.S - The site said it is running on OpenSolaris
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2006 Jan 13
26
A couple of issues
I''ve been testing ZFS since it came out on b27 and this week I BFUed to b30. I''ve seen two problems, one I''ll call minor and the other major. The hardware is a Dell PowerEdge 2600 with 2 3.2GHz Xeons, 2GB memory and a perc3 controller. I have created a filesystem for over 1000 users on it and take hourly snapshots, which destroy the one from 24 hours ago, except the