Workbench Command is a set of command-line tools that can be used to perform simple and complex operations within Connectome Workbench.
SPATIAL STATISTICS ON A VOLUME FILE
wb_command -volume-stats
<volume-in> - the input volume
[-reduce] - use a reduction operation
<operation> - the reduction operation
[-percentile] - give the value at a percentile
<percent> - the percentile to find, must be between 0 and 100
[-subvolume] - only display output for one subvolume
<subvolume> - the subvolume number or name
[-roi] - only consider data inside an roi
<roi-volume> - the roi, as a volume file
[-match-maps] - each subvolume of input uses the corresponding
subvolume from the roi file
[-show-map-name] - print map index and name before each output
For each subvolume of the input, a line of text is printed, resulting
from the specified reduction or percentile operation. Use -subvolume to
only give output for a single subvolume. If the -roi option is used
without -match-maps, then each line will contain as many numbers as there
are maps in the ROI file, separated by tab characters. Exactly one of
-reduce or -percentile must be specified.
The argument to the -reduce option must be one of the following:
MAX: the maximum value
MIN: the minimum value
INDEXMAX: the 1-based index of the maximum value
INDEXMIN: the 1-based index of the minimum value
SUM: add all values
PRODUCT: multiply all values
MEAN: the mean of the data
STDEV: the standard deviation (N denominator)
SAMPSTDEV: the sample standard deviation (N-1 denominator)
VARIANCE: the variance of the data
TSNR: mean divided by sample standard deviation (N-1 denominator)
COV: sample standard deviation (N-1 denominator) divided by mean
L2NORM: square root of sum of squares
MEDIAN: the median of the data
MODE: the mode of the data
COUNT_NONZERO: the number of nonzero elements in the data