search for: voxels

...oxel basis.  I've tested the routine using simulated data and things went well.  As for the real data, the fitting routine works variably.  By variably, I mean the following:   with a specific set of starting parameters the routine would work for the first 10 voxels, for another set of starting values the routine would work for the first 1000 voxels and so on.  NEVER was I able to get starting values that would allow the routine to run entirely!  The error I would get after fitting the limited number of voxels is:  "Error in a...

Hi everyone, I'm not exactly sure how to ask this question most clearly, but I hope that giving the context in which it occurs for me will help: I'm trying to compare the brain images of two patient populations; each image is composed of voxels (the 3D analogue of pixels), and I have two images per patient, one reflecting grey matter concentration at each voxel, and the other reflecting white matter concentration at each voxel. I determined the groups by means of an analysis that involved information from both types of images, and what I...

...I have a question about the Package DierckxSpline. I have tried to find the answer by myself but it didn't worked out. I wondered if Dierckxspline can use different sets of y values in one time to fit a line with knot. I have different sets of Y values representing the same thing for different voxels (in an fmri image). I have already fitted the data in different graphs and I know now that the plots are comparable for the different data sets (so for the different voxels) but I wanted to include all the information in one plot, If it's possible. So I want to know the best fitting line for th...

...andom factor B (subject), and a covariate (age) with a model like this MyResult <- lmer(Response ~ FactorA + Age + (1 | subject), MyData, ...) My input data are like this: For each subject I have a file (a huge matrix) storing the response values of the subject at many locations (~30,000 voxels) corresponding to factor A at the 1st level, another file for factor A at the 2nd level, and a 3rd file for factor A at the 3rd level. Then I have another file storing the age of those subjects. The analysis with the linear mixed model above would be done at each voxel separately. It seems...

...ity based on a third measure. One way to do that would be to color these differently, and use an opacity measure to display the third measure. An example of what I am trying to do is at: http://www.public.iastate.edu/~maitra/papers/mrm02.pdf page 26, for instance. There are two different kinds of voxels, given by greens and red. At the low end, there is transparency on the red scale and at the upper end there is opacity in the red and the green. A simpler example involving only one kind of voxels is on page 24 of the same paper. Either way, that figure was done using Matlab, but I was wondering...

On Thu, Jun 7, 2012 at 6:43 PM, John Doe <jdmls at yahoo.com> wrote: > From: Aft nix <aftnix at gmail.com> > >> On Thu, Jun 7, 2012 at 5:53 PM, John Doe <jdmls at yahoo.com> wrote: >>> ?From: Aft nix <aftnix at gmail.com> >>> >>>> ?I'm developing some kernel module, so i need a stand alone qemu to >>>> ?test my

Hello, I really happy to see how fast R is going : another new release !!!!!. I'm currently using daily this software and really like it. Thanks for this nice work. I don't know how to proceed for my question and if I had to write to you about that. I got some trouble with postscript output mainly but other like png, jpeg and even screen especially with the function filled.contour

Hi I have the following array: test <- array(c(1:16), dim = c(3,4,3)) test ## I call some enries using an index array test.ind <- array(rbind(c(1,2,1), c(3,3,2)), dim = c(2,3)) test[test.ind] ## suppose I want all values in the 2nd row and 4th col over ## all three 3rd dimensions test[2,4,] how to specify a test.ind array with the last index left with ',' i.e test.ind should be

Hi, I am new to R, and am trying to solve the following optimization problem: This is a nonlinear least squares problem. I have a set of 3D voxels. All I need is to find a least squares fit to this data. The data model actually represent a cube-like structure, consisting of seven straight lines. The lines have some intersections (and at this intersection both of the participating lines end). Please note that I need something (some routines,...

I realized that I may not have answered the question you were asking and that no one else has responded. I can across a similar problem and may have an answer to your question now. If you have both the wavelet coefficients and the scaling coefficients then create a fake sequence of the same length as the original and decompose that sequence using wd form wavethersh with the same wavelet family

Hello- I have a script which steps through a series of subjects, and for the subjects I remove outlying values. After removing these outliers, I specify a cutoff, keeping only values over a certain value (e.g., 1.96). I want to populate a matrix with a statistic of the values that make the cutoff (for example, the mean). However, in some subjects, after outliers and the cutoff are specified,

I think the solution may exist. The compatibility of mysql-connector-odbc with maria may just means the driver can access the mariadb - but my experience suggests not live on the same host. maria has its own connector: https://downloads.mariadb.org/connector-odbc/ it does not look like this is in the sig, so I'll have to turn to the maria repo. I'll try replacing the driver first, then

Hi! On C7 I enabled the debuginfo repo and ran: debuginfo-install glibc-2.17-55.el7.x86_64 keyutils-libs-1.5.8-3.el7.x86_64 krb5-libs-1.11.3-49.el7.x86_64 libcom_err-1.42.9-4.el7.x86_64 libselinux-2.2.2-6.el7.x86_64 openssl-libs-1.0.1e-34.el7_0.4.x86_64 pcre-8.32-12.el7.x86_64 xz-libs-5.1.2-8alpha.el7.x86_64 zlib-1.2.7-13.el7.x86_64 Loaded plugins: fastestmirror, langpacks Loading mirror speeds

I get the same symptom when trying to upgrade from the Adobe repo on Fedora 20. On 12/16/2014 01:40 PM, Bill Maltby (C4B) wrote: > On Tue, 2014-12-16 at 12:33 -0600, kqt4at5v at gmail.com wrote: >> On Tue, 16 Dec 2014, m.roth at 5-cent.us wrote: >> >>> kqt4at5v at gmail.com wrote: >> <snip> >> What am I doing wrong? >> >> # yum update

hello list, I'm trying to install ganglia-gmetad on centos 5.6. rrdtool is already installed and librrd is there. But for some reason when I go to install this package it doesn't see that it is. [root at VIRTCENT11:/usr/local/src/ganglia-3.2.0] #yum install ganglia-gmetad Loaded plugins: fastestmirror, security Loading mirror speeds from cached hostfile * base: mirrors.lga7.us.voxel.net

Guys, Is there a difference between CentOS 6.0 and centos 6 on the mirror list? Each mirror seems to have a folder for 6.0 and 6 separately. http://mirrors.lga7.us.voxel.net/centos/

Is there any way to restrict disk use per domain with XEN PV? Thanks. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

So anyway, I have been using linux for years now, currently Fedora 12, and just recently I opened a box and found several of my old windows games. Starcraft, Heroes, Age of Empires, Stronghold, etc, some of which I installed. Then I came to Masters of Orion. This game I figured my crappy netbook could handle, and I get a bunch of "??????????" s in place of the actual text in the

CRAN (and crantastic) updates this week New packages ------------ * bdoc (1.0) Michael Anderson http://crantastic.org/packages/bdoc This package contains a function that will classify DNA barcodes as well as a few test and reference data sets. * bdsmatrix (1.0) Terry Therneau http://crantastic.org/packages/bdsmatrix This is a special case of sparse matrices, used by coxme and

What I have found is that the only new shared objects between the different versions of the running isqls is: < lrwxrwxrwx. 1 root root 24 Oct 31 21:25 /usr/lib64/mysql/libmysqlclient.so.18 -> libmysqlclient.so.18.0.0 > lrwxrwxrwx. 1 root root 24 Nov 2 12:13 /usr/lib64/mysql/libmysqlclient.so.18 -> libmysqlclient.so.18.0.0 ... also this is the only shared object with a different