AFNI program: 3dZcutup
Output of -help
Usage: 3dZcutup [options] dataset
Cuts slices off a dataset in its z-direction, and writes a new
dataset. The z-direction and number of slices in a dataset
can be determined using the 3dinfo program.
Options:
-keep b t = Keep slices numbered 'b' through 't', inclusive.
This is a mandatory option. If you want to
create a single-slice dataset, this is allowed,
but AFNI may not display such datasets properly.
A single slice dataset would have b=t. Slice
numbers start at 0.
-prefix ppp = Write result into dataset with prefix 'ppp'
[default = 'zcutup']
Notes:
* You can use a sub-brick selector on the input dataset.
* 3dZcutup won't overwrite an existing dataset (I hope).
* This program is adapted from 3dZeropad, which does the
same thing, but along all 3 axes.
* You can glue datasets back together in the z-direction
using program 3dZcat. A sample C shell script that
uses these programs to carry out an analysis of a large
dataset is:
#!/bin/csh
# Cut 3D+time dataset epi07+orig into individual slices
foreach sl ( `count_afni -dig 2 0 20` )
3dZcutup -prefix zcut${sl} -keep $sl $sl epi07+orig
# Analyze this slice with 3dDeconvolve separately
3dDeconvolve -input zcut${sl}+orig.HEAD \
-num_stimts 3 \
-stim_file 1 ann_response_07.1D \
-stim_file 2 antiann_response_07.1D \
-stim_file 3 righthand_response_07.1D \
-stim_label 1 annulus \
-stim_label 2 antiann \
-stim_label 3 motor \
-stim_minlag 1 0 -stim_maxlag 1 0 \
-stim_minlag 2 0 -stim_maxlag 2 0 \
-stim_minlag 3 0 -stim_maxlag 3 0 \
-fitts zcut${sl}_fitts \
-fout -bucket zcut${sl}_stats
end
# Assemble slicewise outputs into final datasets
time 3dZcat -verb -prefix zc07a_fitts zcut??_fitts+orig.HEAD
time 3dZcat -verb -prefix zc07a_stats zcut??_stats+orig.HEAD
# Remove individual slice datasets
/bin/rm -f zcut*
++ Compile date = Oct 17 2024 {AFNI_24.3.03:linux_ubuntu_24_64}
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