Hi -
In the most recent PTN release, all node maps (melodic_IC.dtseries.nii) created
with group-ICA are sign-flipped (if necessary) to have positive maximum
voxel/greyordinate, and then rescaled so this peak is 1. The values of other
voxels across the map will vary from node to node, and the
As an aside, if ‘ft_read_cifti’ is expanding all the data to type double (64
bit), then you are looking at needing > 66 GB to load a 91282x91282 dconn.nii
in matlab. I assume that is what is happening based on your experience.
If you want to see how far you can get in Matlab, I would at least
Thanks Michael! Your suggestion was quite useful. I successfully loaded the
connectivity matrix into Matlab using ciftiopen and did the operation that
I wanted (i.e. selecting part of the matrix).
Reza
On Thu, Oct 25, 2018 at 6:41 PM Harms, Michael wrote:
>
>
> As an aside, if ‘ft_read_cifti’
Thank you Matt,
but since I am running all of this outside of the workbench it would be
easiest to start with old-style niftii volumetric labels.
Which CIFTI data exactly are you referring to?
Thanks!
Nicola
On 10/24/2018 5:27 AM, Glasser, Matthew wrote:
> I would do something like that
Thanks Tim! I will consider your suggestions.
Reza
On Thu, Oct 25, 2018 at 11:51 PM Timothy Coalson wrote:
> If you have their cifti indices then you can just make a new cifti dscalar
> with only those grayordinates set to 1 (double check this in wb_view,
> matlab uses 1-based indexing, and I
If your swap space isn't on an SSD, then it will be extremely slow to do
anything on it.
Tim
On Wed, Oct 24, 2018 at 7:19 PM, Glasser, Matthew
wrote:
> Use swap space.
>
> Matt.
>
> From: on behalf of Timothy
> Coalson
> Date: Wednesday, October 24, 2018 at 4:57 PM
> To: Reza Rajimehr
>
Yes that would be a better solution. I think the wb_command
-cifti-restrict-dense-map might work.
Matt.
From: Reza Rajimehr mailto:rajim...@gmail.com>>
Date: Thursday, October 25, 2018 at 3:16 AM
To: Matt Glasser mailto:glass...@wustl.edu>>
Cc: Timothy Coalson mailto:tsc...@mst.edu>>,
sorry, I meant the differences in scaling across nodes within a subject.
Thanks!
Am Do., 25. Okt. 2018 um 10:27 Uhr schrieb Steve Smith :
> Hi - do you mean differences in scaling across nodes, or within-node
> differences across subjects?
> Cheers.
>
>
> On 25 Oct 2018, at 09:21, David Hofmann
We tried to open *.dconn.nii in Matlab using ft_read_cifti on an Ubuntu
system with 48 GB RAM. It used 48 GB RAM and 18 GB (out of 60 GB) swap,
then Matlab gave out of memory error! Will try to use a system with even
higher RAM.
Tim: We have a list of 913 grayordinate voxels (we have their voxel
Thanks for the reply Stephen,
do you have an idea, how these different amplitudes arise? Do they just
reflect the strength of the BOLD fluctuations within these
regions/components or are they also influenced by other factors like noise
or something? I'm trying to understand if such differences do
Hi - do you mean differences in scaling across nodes, or within-node
differences across subjects?
Cheers.
> On 25 Oct 2018, at 09:21, David Hofmann wrote:
>
> Thanks for the reply Stephen,
>
> do you have an idea, how these different amplitudes arise? Do they just
> reflect the strength of
11 matches
Mail list logo
