From: Chuck Rosenberg <chuck+@cs.cmu.edu>
To: danieln+@cs.cmu.edu, mitchell+@cs.cmu.edu
cc: chuck+@cs.cmu.edu
Subject: Converted Data
Mime-Version: 1.0
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Date: Thu, 14 Jan 1999 00:12:54 -0500
Sender: chuck@gs77.sp.cs.cmu.edu

Hi,

I finally completed the voxel cropper and have run it on the data from subject 
02882.  I created two new subdirectories - lb_data and lt_data for each of the 
brain areas.  The data has been cropped according to the voxel info we were 
given so each of the data elements now has a small number of entries.

In each of these directories there is one file for each of the trials, where 
each line of the file is a set of 15 floating point numbers in ascii, 
separated by spaces, as we discussed.  An example filename is as follows:

     02882_lb_i525_c05_n17.031
          02882 = subject number
          lb    = brain areas
          i525  = original image index (time) of the first image
                  in this subsequence
          c05   = experimental condition
          n17   = number of images in this subsequence

There is also a file named 02882_lb.loc which is the x,y,z locations of the cropped voxels and the file 02882_lb.hdr which contains various human readable information about the data,

If you have any questions, I should be in tomorrow morning.

Chuck


**** Additional Notes - Chuck 1/24/99 ****

The name of the voxel cropper program is pff2txt.

The ".loc" file generated by the program utilizes a co-ordinate system
where the first voxel is x=0,y=0,z=0.

By default the cropping file is assumed to utilize a co-ordinate system
where the first voxel is x=1,y=1,z=1.  This can be changed with the "-i0"
option.