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Bug 1960 - some 'rising' events are not found for NXE data
| Status | ASSIGNED |
| Reported | 2013-01-26 17:39:00 +0100 |
| Modified | 2014-01-29 17:14:35 +0100 |
| Product: | FieldTrip |
| Component: | fileio |
| Version: | unspecified |
| Hardware: | PC |
| Operating System: | All |
| Importance: | P3 normal |
| Assigned to: | Eelke Spaak |
| URL: | |
| Tags: | |
| Depends on: | |
| Blocks: | |
| See also: |
Renate Rutiku - 2013-01-26 17:39:55 +0100
Nexstim data has square pulse triggers. So there are two events 'rising' and 'falling' and there should be an equal number of both events. But for a few datasets ft_definetrial() fails to find 1 or more 'rising' events. There is no equivalent problem for 'falling' events. An example dataset and the corresponding script can be downloaded here: https://www.dropbox.com/sh/w2fwfetktyc1fmy/sQy2acL6YM
Renate Rutiku - 2013-01-27 10:21:39 +0100
Correction: now I also found the same problem for some 'falling' events.
Robert Oostenveld - 2013-01-28 11:32:10 +0100
I copied the data and example script from dropbox to our network drive. mac001> pwd /home/common/matlab/fieldtrip/data/test/bug1960 mac001> ls -l total 231912 -rw-r--r--@ 1 roboos 655 118734720 Jan 28 11:31 KI_12_1_4.nxe -rw-r--r--@ 1 roboos 655 932 Jan 28 11:31 example_script.m
Eelke Spaak - 2014-01-29 13:49:19 +0100
Hi Renate, Apologies for taking so long to get back to this. When looking at your data, I only see triggers in the TRIG1 channel. These all seem to have the same value. Could you give me some more information what the exact voltages in the trigger channel(s) mean, and how I can verify that the correct amount of events indeed is 90 per type? Thanks! Eelke