search for: garthwait

Displaying 4 results from an estimated 4 matches for "garthwait".

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2007 Jul 24
1
function optimization: reducing the computing time
Dear useRs, I have written a function that implements a Bayesian method to compare a patient's score on two tasks with that of a small control group, as described in Crawford, J. and Garthwaite, P. (2007). Comparison of a single case to a control or normative sample in neuropsychology: Development of a bayesian approach. Cognitive Neuropsychology, 24(4):343?372. The function (see below) return the expected results, but the time needed to compute is quite long (at least for a tes...
2006 Mar 30
1
warning message in hand-made function
...dl <- n-1 #degrees of freedom of the test #t.test computation t.obs <- (patient-mean.c) / (sd.c*(((n+1)/n)^0.5)) proba.onetailed <- 1-pt(abs(t.obs), df=dl) rar <- pt(t.obs, df=dl) #point estimate of the rarity #confidence intervals computation on the rarity (Crawford & Garthwaite, 2002, Neuropsychologia) c <- (patient-mean.c)/sd.c #finding the non central parameter of t distributions f <- function(delta, pr, x, df) pt(x, df = df, ncp = delta) - pr deltaL <- uniroot(f, lower=-37.62, upper=37.62, pr = 0.025, x = c* (n^0.5), df = dl) deltaU <- uniroot(f, low...
2008 Feb 27
1
Q. virsh shutdown for a Solaris HVM guest domain
Hi, I''ve installed Solaris 10 u4 as a hardware virtual machine guest domain on SXDE 1/08 (aka Nevada b79b) which was fine, i.e. after the virt-install the domain was fine. However when I went to shutdown the domain I issued "virsh shutdown solarisHVM" which appeared to immediately terminate the guest domain. Note, I also have a paravirtualized domain
2007 Sep 26
0
Open High Availability Cluster with xVM
Hi Everyone, Just a quick fyi, as within the HA Clusters community we have recently endorsed a project to develop an Open High Availability Cluster (OHAC) failover agent for xVM guest domains. The HA Clusters community is located at http://opensolaris.org/os/community/ha-clusters/ The project, Cluster Agent: OpenSolaris xVM, is located at http://opensolaris.org/os/project/ha-xvm/ As we