Hi Rick, Ziad, Daniel,

I'm getting the following error with the following command:

yojo@waugh [29] align_epi_anat.py \
-overwrite \
-dset1 ${subj}.r11.brainmasked_median+orig \
-dset2 ${subj}.r${run}.brainmasked+orig \
-dset2to1 \
-dset2_base median \
-big_move \
-dset1_strip None \
-dset2_strip None \
-cost lpa \
-volreg off \
-tshift off \
-suffix _align
? -overwrite \
? -dset1 ${subj}.r11.brainmasked_median+orig \
? -dset2 ${subj}.r${run}.brainmasked+orig \
? -dset2to1 \
? -dset2_base median \
? -big_move \
? -dset1_strip None \
? -dset2_strip None \
? -cost lpa \
? -volreg off \
? -tshift off \
? -suffix _align
#++ align_epi_anat version: 1.48
#++ turning off volume registration
#++ turning off deobliquing tshift, volume registration, resampling
#++ turning off deobliquing tshift, volume registration, resampling
#Script is running (command trimmed):
3dAttribute DELTA ./Dorothy.r11.brainmasked+orig
Error: Empty output.
Traceback (most recent call last):
File "/usr/local/afni/abin/align_epi_anat.py", line 3129, in <module>
if(not (ps.process_input())):
File "/usr/local/afni/abin/align_epi_anat.py", line 1547, in process_input
min_d = self.min_dim_dset(ps.epi)
File "/usr/local/afni/abin/align_epi_anat.py", line 1770, in min_dim_dset
min_dx = min([abs(float(com.val(0,i))) for i in range(3)])
TypeError: float() argument must be a string or a number

A prior post about this error notes white space in paths can be an issue:

[afni.nimh.nih.gov]

I'm not running from within a directory that has spaces in the path:

/Volumes/ockham/elyse/analysis/DorothyPar

But I am running from within an external drive. Could this be part of the problem?

cheers
iain