similar to: Phi parameter in corAR(1) in NLMEs

Dears, I am specifying a panel model with GLS function and corCAR1 and cor AR1 parameters to correct for serial autocorrelation. But I have one seemingly trivial question: those models fitted that way are random effects models or pooling models? Thanks again, Tomas Notes [[alternative HTML version deleted]]

I am using the gls function to fit a two-stage least squares model with first order autoregressive error terms. Since there is no automated adjustment for the use of two-stage least squares in this package, I am trying to manually replicate standard errors of the coefficient estimates in order to adjust for a first stage OLS estimate of endogenous variables. However, thus far I have been unable to

Dear all, I?m analyzing this dataset containing biodiversity indices, measured over time (Week), and at various contaminant concentrations (Treatment). We have two replicates (Replicate) per treatment. I?m looking for the effects of time (Week) and contaminant concentration (Treatment) on diversity indices (e.g. richness). Initial analysis with GAM models showed temporal autocorrelation of

Hello all, I am trying to use lme to examine how a response variable (Chla) changes over time in different treatments (2 Temp & 2 Light levels). Within each treatment combination, there are two replicate tanks (each with unique TankID) with coral fragments in them. All tanks are subject to the same environment until Time=0, when treatments are imposed, and Chla is measured for each

I am having trouble fitting correlation structures within nlme. I would like to fit corCAR1, corGaus and corExp correlation structures to my data. I either get the error "step halving reduced below minimum in pnls step" or alternatively R crashes. My dataset is similar to the CO2 example in the nlme package. The one major difference is that in my case the 'conc' steps are

I am using R 2.7.0 on a linux platform. I am trying to reproduce a 2002 example using lme from the nlme library. I want to change the otimizer from the default (nlminb) to optim. Specifically, this is what I am trying to do: R> library(nlme) R> library(car) # for data only R> data(Blackmoor) # from car R> Blackmoor$log.exercise <- log(Blackmoor$exercise + 5/60, 2) R>

I had to move my RedHat 5 box acting as a PDC to a new IP address. It is running samba 3.5.10. After the move, none of my windows or linux samba clients worked anymore. I tried rejoining some to the domain, but would get error Unable to find a suitable server Join to domain 'MRIRESEARCH' is not valid The old PDC IP address is 132.183.202.95 and nothing is at that IP anymore (for 4

I'm looking for software that makes plots such as fig 4 (a)-(e), fig 5 anf fig 7 of Gray, Robert, "Flexible Methods for Analyzing Survival Data Using Splines, with Applications to Breast Cancer Prognosis," 1992, J Am Stat Assoc, pp 942-51. In other words, I'm looking for software that takes survival data and a continuous covariate as input and computes a curve giving log hazard

I have been using a nlme model and wish to specify the correlation structure. My data is grouped (bas), but I have no time component or adequate spatial description beyond the grouping variable. So I chose the simplest structure and updated my original nlme model by: update(model, corr=corCompSymm(~1|bas)) This is not significant. One of my variables measures area upstream of the sample. Area

Right now we do a lot of hard to hard disk backup by using rsync to weekly "mirror" the source filesystem to a backup filesystem. This works fairly well for most sources. However, one issue with rsync is that simple things like changing the file name or directory name cause the whole file or directory structure to get recopied over a previous sync. Also, like for mail spools, large

I have a disk where serveral files have a file size that is much bigger then the space they actually use. THe file size is bogus. In the example below, the size is reported as 4.2MB but the file is really supposed to be on 116K which is true accoring to du and the block list from debugfs. However, doing a 'cat |wc' file actually gives me 4.2MB bytes. Where are those extra bytes coming

I am trying to specify a mixed model for my research, but I can't quite get it to work. I've spent several weeks looking thru various online sources to no avail. I can't find an example of someone trying to do precisely what I'm trying to do. I'm hoping some smart member of this mailing list may be able to help. First off, full disclosure: (1) I'm an engineer by trade, so

Hi, I have been using the function lme() of the package nlme to model grouped data that is auto-correlated in time and in space (the data was collected on different days via a moving monitor). I am aware that I can use the correlation classes corCAR1 and corExp (among other options) to model the temporal and spatial components of the auto-correlation. However, as far as I can tell, I can only

for users defined on the PDC. However, I am setting up a second Samba server and want it to join the domain so I can use "security = domain". Lets call the PDC samba1 and the new samba client samba2. ON samba 1, I did: useradd -c 'Samba2 SAMBA' -d /dev/null -M -g 202 -s /bin/false -u 1503 samba2\$ passwd -l samba2\$ smbpasswd -a -m samba2\$ to create the trust account. Then

Printing to a samba print share from a client that is firewalled/ masqueraded is painfully slow. Seems the protocol requires the samba server to make an initiating connection back to the SMB server on the client which will of course fail on a firewalled/masqueraded client. The problem is that the a print job hangs till this operation times out causing printing to take several minutes for users.

I am being forced by the upper management to tie our Linux system logins to the corporate Windows Active Directory accounts. The problem is our UNIX accounts do not match our corporate AD accounts in either name or underlying UID. For just plain Linux login I solved this issue using OpenLDAP with SASL PassThru so I can set my 'raines' user password in LDAP to be "{SASL}per2"

I know there is no straightforward way to recover deleted files on an ext3 file system, but is there any way to recover from an accidental mke2fs? -- --------------------------------------------------------------- Paul Raines email: raines@nmr.mgh.harvard.edu MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging 149 (2301) 13th Street tel:(617)-724-2369

When tar'ing up an ext3 filesystem on a 3ware RAID I have, I got the following errors in my system log: Apr 7 21:27:46 allo 3w-xxxx[957]: Drive error encountered on port 3 on controller ID:0. Check cables and drives for media errors. (0xa) Apr 7 21:27:46 allo kernel: 3w-xxxx: scsi0: Command failed: status = 0xc7, flags = 0x51, unit #0. Apr 7 21:27:58 allo last message repeated 3 times Apr

I have one Linux RHEL4 box setup as a PDC and several other Linux RHEL4 samba servers and Windows XP boxes joined to the domain. Ever since upgrading the Linux box to Samba 3 (they are currently running samba-3.0.10) I have problems with the Linux samba clients suddenly dropping out of the domain. Operations suddenly start failing with [2006/09/27 16:03:25, 3]

I have a CentOS 5 VM in vmware I wanted to move to work on KVM/libvirt. I used qemu-img to convert it to a qcow2 image, loaded virt-manager and created a new VM pointed at that qcow2 image. The boot paniced when it tried to mount the root filesystem also complaining about not being able to remount the swap partition. I played around and was able to get it to boot by changing the Virtual disk