AFNI program: asymm_report.csh
Output of -help
Overview ~1~
This is a script to compute volumes, surface areas, patch
surface areas and asymmetry ratios between
left and right regions from labeled datasets. These can be in a
native subject space or in a standard template space, as for an atlas.
Usage Example ~1~
asymm_report.csh \
-input HCA_lr_v0.9.nii.gz \
-right_range 1 21 \
-left_range 31 51 \
-isosurf_dir ~/HCA_subjects/sub-101/surfs \
-isosurf_base HCA \
-reportfile HCA_asymm_report.txt
Note only the input dset and the left and right ranges are *required*.
Options ~1~
-input input_dset :required input dataset for relative region sizes
Provide index values either by range or by list files:
-right_range min max :minimum and maximum index values for right regions
-left_range min max :minimum and maximum index values for left regions
with list files (columns or rows of numbers)
-right_list rightlist.1D : list of index values for right regions
-left_list leftlist.1D : list of index values for left regions
-isosurf_dir dir :directory with gifti surface files for regions
(default current directory)
-isosurf_base prefix :beginning part of gifti file names shared across
regions
-make_isosurfs :make isosurfaces from all regions in input volume
uses isosurf_dir for directory and isosurf_base for
prefix for output, e.g. isosurf_base.gii
-surf_patch :compute areas of patches on surfaces
-surf_patch_surface surfdset :use one isosurface from labeled volume
for patches (different than isosurfaces for
individual regions)
-make_patch_surface :generate new surface for patch area computations
-reportfile textout :specify filename for text output (default is stdout)
-use_left_labels :default is to use labels from right index regions in
output report. This option switches to use left labels
-surf_patch_prefix ppp:prefix for output labelled patch dset prefix.niml.dset
-surf_patch_smooth nn :neighborhood size for modal smoothing on surface
(2mm default). Check surface with smoothed data for
reasonableness
-method LI :use method for comparison
LI (laterality index) = (L-R)/(L+R)
(negative values have right symmetry,
positive values have left symmetry
zero values are symmetric)
or
RL (right to left ratio) = R/L (Default)
This page auto-generated on
Tue Aug 4 11:24:06 PM EDT 2026