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Bug 2757 - ft_freqanalysis cannot operate on a single channel

Reported 2014-11-07 19:44:00 +0100
Modified 2019-08-10 12:28:11 +0200
Product: FieldTrip
Component: specest
Version: unspecified
Hardware: PC
Operating System: Windows
Importance: P5 normal
Assigned to:
Depends on:
See also:

- 2014-11-07 19:44:54 +0100

I am analyzing data of a stabilometric platform (aka "balance board") and would like to analyze the data as one channel ("the channel of center-of-pressure fluctuations" / "the body sway channel"). When trying to obtain a power spectrum of the body sway data, ft_freqanalysis only returned zeros. Only when using two channels (e.g. by creating a dummy channel) it works fine.

Jörn M. Horschig - 2014-11-19 11:37:10 +0100

added to joint user because roemer might be absent ;) I think a similar bug has been filed before by an external someone, but I cannot find that bug back right now

Robert Oostenveld - 2014-12-10 18:00:14 +0100

the same issue was addressed in another bug. However, I just made a dataset where I again have an error with a single channel. Hence I will follow it up at #2364 *** This bug has been marked as a duplicate of bug 2364 ***

Robert Oostenveld - 2019-08-10 12:28:11 +0200

This closes a whole series of bugs that have been resolved (either FIXED/WONTFIX/INVALID) for quite some time. If you disagree, please file a new issue describing the issue on