(makoto_mi) FMRIB: if the last 'qrs' cue is too close to the data end, 'remove pulse artifact' stopps

[nucleuscub]

Issue transferred from Bugzilla(Bug 584)

Makoto 2007-12-23 21:43:24 PST
Hi Arno and everyone. How are you doing?
I found another type of bug in FMRIB.
This bug occurs when there is the last 'qrs' cue too close to the data end, 'remove pulse artifact' (fmrib_pas.m) stopps. This bug resembles the last one I reported.

The error message is

??? Index exceeds matrix dimensions.

This violation occurs in fmrib_pas.m line 198,

pcamat(p-1,:);=eegchan(peakI(p)-PArange:peakI(p)+PArange);

where,

peakI(p)-PArange:peakI(p)+PArange

exceeds the data length of eegchan.

To avoid this, simplly delete the last 'qrs' cue. It worked, at least in my environment.

The same type of bug is expected at the beginning of the data, so I would suggest one should delete the first and the last qrs cues after identifying them.

I'll report this to Rami.

Hope this helps someone.

Makoto

[reply] [−]Comment 1Arnaud Delorme 2009-07-02 15:14:16 PDT
Rami is not handling this project anymore. So it is up to whoever finds the problem to fix it.

Thanks a lot,

Arno