Hi,
the time-course of the IC itself. For details on the decomposition, I would suggest that you read the relevant melodic / PICA references and technical reports.
Best wishes,
Andreas
________________________________
Von: FSL - FMRIB's Software Library im Auftrag von Xuelin Cui
Gesendet: Di 23.01.2007 00:53
An: [log in to unmask]
Betreff: Re: [FSL] AW: [FSL] installing FSl3.3.8 on a Mac
hi Andreas:
Thanks for reply
I know it is std now. But what is used to calculate the std? The intensity of a bunch of voxels? The mean is calculated by what
data? Could explain a little bit more? I am new, sorry.
Thanks a lot
Xuelin
****************************************
Xuelin Cui
Department of Electrical Engineering
University of Hawaii-Manoa
Honolulu HI 96822
Tel: 1-808-349-0983
Email: [log in to unmask]
****************************************
----- Original Message -----
From: Andreas Bartsch <[log in to unmask]>
Date: Monday, January 22, 2007 1:30 pm
Subject: [FSL] AW: [FSL] installing FSl3.3.8 on a Mac
To: [log in to unmask]
> Hi,
>
> it is standard deviation units. This is because the time course
> extracted is normalised (i.e. simply z-transformed) to
> (Xi - Mean) / SD
> So it is centered around zero, and the standard deviation of your
> t#.txt file is 1.
> BTW, I think this is a very nice way of diplaying time-courses -
> much better than % signal change;).
> Cheers-
> Andreas
>
> ________________________________
>
> Von: FSL - FMRIB's Software Library im Auftrag von Xuelin Cui
> Gesendet: Mo 22.01.2007 23:23
> An: [log in to unmask]
> Betreff: Re: [FSL] installing FSl3.3.8 on a Mac
>
>
>
> hi Mark:
>
> I have a question on MELODIC. You know once we applied MELODIC to
> data, the result can be displayed on a webpage. There
> are 3 graphs there. The 2nd is elevant time-course of the ICA
> decomposition(see attachment). I am just confused on the y-axis
> on this plot. The x-axis is obviousely time. What is the y-axis? (-
> 0.50, -0.25, 0.00, 0.25....)
>
> Thanks a lot
>
> Xuelin
>
> ****************************************
> Xuelin Cui
> Department of Electrical Engineering
> University of Hawaii-Manoa
> Honolulu HI 96822
>
> Tel: 1-808-349-0983
> Email: [log in to unmask]
> ****************************************
>
> ----- Original Message -----
> From: Mark Jenkinson <[log in to unmask]>
> Date: Sunday, January 14, 2007 10:58 pm
> Subject: Re: [FSL] installing FSl3.3.8 on a Mac
> To: [log in to unmask]
>
> > Hi,
> >
> > Putting fsl in your own path should be fine.
> > It looks like your environment setup isn't right.
> >
> > Did you try logging out and logging in again?
> > Sometimes logging out/in is the easiest way to force
> > everything to start afresh and see if it works.
> >
> > Are you sure you are running bash?
> > It is possible to set up the user shell to run tcsh instead,
> > and this would stop the .bash_profile from being run.
> >
> > If none of this is the case, then try putting the commands
> > in your .profile instead.
> >
> > If even this fails then try remaking the file from the
> > website instructions (cut and paste rather than type
> > the commands so that all the syntax is exact).
> >
> > Hopefully something here will work.
> > Otherwise email us again.
> > All the best,
> > Mark
> >
> >
> > On 12 Jan 2007, at 03:06, Xuelin Cui wrote:
> >
> > > hi all:
> > >
> > > I am new to fsl. I had a problem when I was installing the fsl on
> >
> > > my Mac. I
> > > follow the instruction every step. The only difference is that I
> > un-
> > > tar the
> > > download package to my own path: /Users/xuelin/. After un-tar,
> > all
> > > the fsl
> > > files and folder were in the folder of /User/xuelin/fsl.
> > >
> > > Then I modified the .bash_profile as the instruction said. I
> copied> > everything but change the first line into:
> FSLDIR=/Users/xuelin/> > fsl. Then I
> > > exit te termical and re-launch it again. But when I am trying
> to
> > > see if I
> > > correctly setup the environment by typing "echo $FSLDIR", it
> > shows
> > > nothing
> > > on the screen. Then of course I failed to run fsl, as well as its
> > GUI.>
> > > I dont know why I failed like that? Is that because I didnt
> > > correctly setup
> > > my envioronment?
> > >
> > > Anyone can help, I really appreciate.
> > >
> > > Thanks
> > >
> > > Xuelin
> >
>
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