Diff for "FsgdFormat" - Free Surfer Wiki

Differences between revisions 1 and 3 (spanning 2 versions)

This page describes the FreeSurfer Group Descriptor (FSGD) File Format (Version 1) as of 11/12/02. FSGD is a way to describe a group of subjects and their accompanying data. This can include class membership and other continuous varibles (eg, age). The nice thing about the FSGD is that various FreeSurfer programs can automatically compute the design matrix from an FSGD file. The FSGDF is used by mri_glmfit, tksurfer, tkmedit. They are created automatically by qdec, but qdec is currently (12/9/08) limited to two continuous variables and two discrete variables. The FSGD format uses tags to identify information.

Example of a legal file:

  GroupDescriptorFile 1
  Title MyTitle
  Class Class1 plus blue 
  CLASS Class2 circle green
  SomeTag
  Variables             Age  Weight   IQ
  Input subjid1 Class1   10    100   1000               
  Input subjid2 Class2   20    200   2000
  #Input subjid3 Class2   20    200   2000
  DefaultVariable Age

Notes: * The first line must be "GroupDescriptorFile 1".
* Title is not necessary. This will be used for display.
* CLASS only needs the class name (case is ignored), the next two items will be used in the display.
* The third input is ignored.
* DefaultVariable is the default variable for display.
* SomeTag is not a valid tag, so it will be ignored.

-  ⇤ ← Revision 1 as of 2008-12-09 14:50:49 → 
  Size: 1228
  Editor: crash
  Comment:
+   ← Revision 3 as of 2008-12-09 14:53:35 → ⇥
  Size: 1373
  Editor: crash
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-(Version 1) as of 11/12/02. FSGDF is a way to describe a group of
+(Version 1) as of 11/12/02. FSGD is a way to describe a group of
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-compute the design matrix from an FSGD file.

The FSGDF is used by mri_glmfit, tksurfer, tkmedit. They are created
automatically by qdec. The FSGD format uses tags to identify
+compute the design matrix from an FSGD file. The FSGDF is used by
mri_glmfit, tksurfer, tkmedit. They are created automatically by qdec,
but qdec is currently (12/9/08) limited to two continuous variables
and two discrete variables. The FSGD format uses tags to identify
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-  Example of a legal file:
+Example of a legal file:
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-  Notes: 

* The first line must be "GroupDescriptorFile 1".
* Title is not necessary. This will be used for display.
* Class only needs the class name, the next two items will be used in the display.
* The third input is ignored.
* DefaultVariable is the default variable for display.
* SomeTag is not a valid tag, so it will be ignored.
+Notes: 
* The first line must be "GroupDescriptorFile 1".<<BR>>
* Title is not necessary. This will be used for display. <<BR>>
* CLASS only needs the class name (case is ignored), the next two
items will be used in the display.<<BR>> 
* The third input is ignored.<<BR>>
* DefaultVariable is the default variable for display.<<BR>>
* SomeTag is not a valid tag, so it will be ignored.<<BR>>