HI Arul,
Actually, tstim.1D is a single column file, with 30 rows
(and is part of the AFNI_sample_03.tgz sample data, see:
[
afni.nimh.nih.gov]).
Such data is often presented in rows because it takes so
much less space.
However, for the -tstim option, it makes no difference.
The tstim option takes the timing from the command line,
which is why `cat tstim.1D` is used (putting the output
of that cat command back on the command line, before the
waver program reads the command).
Each condition should get its own input file and output
file. You will probably end up passing those output files
to 3dDecovolve, via the '-stim_file' option.
The command 'waver -help' will provide descriptions of the
various options.
- rick