AFNI program: 3dBrickStat
Output of -help
Usage: 3dBrickStat [options] dataset
Compute maximum and/or minimum voxel values of an input dataset
The output is a number to the console. The input dataset
may use a sub-brick selection list, as in program 3dcalc.
Note: If you don't specify one sub-brick, the parameter you get
----- back is computed from all the sub-bricks in dataset.
Options :
-quick = get the information from the header only (default)
-slow = read the whole dataset to find the min and max values
all other options except min and max imply slow
-min = print the minimum value in dataset
-max = print the minimum value in dataset (default)
-mean = print the mean value in dataset
-var = print the variance in the dataset
-count = print the number of voxels included
-volume = print the volume of voxels included in microliters
-positive = include only positive voxel values
-negative = include only negative voxel values
-zero = include only zero voxel values
-non-positive = include only voxel values 0 or negative
-non-negative = include only voxel values 0 or greater
-non-zero = include only voxel values not equal to 0
-nan = include only voxel values that are not numbers (NaN, inf, -if,
implies slow)
-nonan =exclude voxel values that are not numbers
-mask dset = use dset as mask to include/exclude voxels
-automask = automatically compute mask for dataset
Can not be combined with -mask
-percentile p0 ps p1 write the percentile values starting
at p0% and ending at p1% at a step of ps%
Output is of the form p% value p% value ...
Percentile values are output first. Only one sub-brick
is accepted as input with this option.
Write the author if you REALLY need this option
to work with multiple sub-bricks.
-median a shortcut for -percentile 50 1 50
-ver = print author and version info
-help = print this help screen
INPUT DATASET NAMES
-------------------
This program accepts datasets that are modified on input according to the
following schemes:
'r1+orig[3..5]' {sub-brick selector}
'r1+orig<100..200>' {sub-range selector}
'r1+orig[3..5]<100..200>' {both selectors}
'3dcalc( -a r1+orig -b r2+orig -expr 0.5*(a+b) )' {calculation}
For the gruesome details, see the output of 'afni -help'.
++ Compile date = Nov 5 2009
This page auto-generated on
Thu Nov 5 23:06:16 EST 2009