Dear Anant,

my apologies for the late reply, I don't check this forum regularly, since we try to bundle all user requests on GitHub:

https://github.com/translationalneuromodeling/tapas/issues

Q1: With respect to your question, it is very hard to tell from the error message. It occurs, because the time vector and the respiratory trace do not seem to have the same length. It would probably be easiest, if you sent me your logfile and the changed batch file example so that I can reproduce the error.

NslicesPerBeat can be left empty, unless you use cardiac triggering/gating for your sequence.

Q2: You probably will not need the trigger files, I suspect they are onset times of cardiac R-peak and breathing amplitude max events. But PhysIO calculates these peak onsets on its own.

I hope that (still) helps.

All the best,
Lars