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Hi,

I am astonished to hear that one can do sophisticates further 
calculations with Excel that is worth this effort. I think, R 
(http://cran.r-project.org/) brings all  statistical tools one can think 
of for free and runs also well with Linux. The same can be said about 
Python tools (http://nipy.sourceforge.net/, http://numpy.scipy.org/, 
http://www.scipy.org/). This makes scientific life more enjoyable.

Anyway, if you need a more convenient way to get the data in an Excel 
convenient format, you can maybe include this in a script subsequent to 
fslmeants. First you need to remove the first three lines containing the 
coordinates:

tail -n +3 voxeldata.txt > corr_voxelTS.txt

Afterwards you can convert this text file to the desired format. I am 
aware of two options to convert a text file to Excel format. Maybe one 
is working for you.
ssconvert is part of gnumeric (free Excel replacement): 
http://linuxcommand.org/man_pages/ssconvert1.html
perl tool: http://freecode.com/projects/writeexcel

Have fun,
wolf

On 07/28/2012 03:11 AM, zhang mingxia wrote:
> Hi Wolf,
>
> Thanks so much! That is what I wanted, except that the data in .txt 
> files are not convenient to be input into excel in Windows system for 
> further calculation :-).
>
> Mingxia
>
> On Fri, Jul 27, 2012 at 3:27 PM, wolf zinke <[log in to unmask] 
> <mailto:[log in to unmask]>> wrote:
>
>     Hi,
>
>     I am not entirely sure what you mean by extracting the value of
>     every voxel, but in principle it is the tool 'fslmeants' you are
>     looking for:
>
>     fslmeants -i <yourdatafile> -o voxeldata.txt -m <somemask> --showall
>
>     This will output the data of each voxel columnwise as text file,
>     with the first three rows referring to the voxels x-, y-, and
>     z-coordinates.  So you might use it to extract voxel values for 3D
>     volumes as well as for 4D volumes (please note the option '-c <x y
>     z>' in case you only need the data from a single voxel).
>
>     I hope this helps,
>     wolf
>
>
>     On 07/27/2012 10:58 PM, zhang mingxia wrote:
>
>         Hello Everyone,
>
>         I want to extract the value of every voxel to do some
>         analysis. Does anyone know the command to extract it? Thanks
>         in advance.
>
>         Mingxia
>
>