Page 1 of 1

Warning-BCI2000 Offline Analysis

Posted: 26 Feb 2010, 04:32
by saimrasheed
Hi,

While using BCI2000 offline analysis, I selected frequency Analysis domain and EEG Acquisition type and checked ignore warnings but still getting a warning
===
Evaluation of target condition 1 in conjunction with trial change condition resulted in fewer than 3 useable trials. Please relax your conditions.
===

Regards.

Posted: 26 Feb 2010, 08:01
by mellinger
Saim,

when you check "Ignore warnings", you will still get warnings displayed but they won't interrupt the analysis process.

When you get a "fewer than 3 useable trials" warning, this may have a number of reasons:
- You recorded fewer than 3 trials for one of the conditions.
- There is something wrong with your target condition--maybe you entered an invalid target code?
- Your trial duration is too small (<< 1s) for data analysis.

HTH,
Juergen