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Bug 116 - Feature that was used by SPM disappeared

Status	CLOSED FIXED
Reported	2010-07-19 13:49:00 +0200
Modified	2010-07-24 14:10:19 +0200
Product:	FieldTrip
Component:	core
Version:	unspecified
Hardware:	PC
Operating System:	Windows
Importance:	P1 major
Assigned to:	Jan-Mathijs Schoffelen
URL:
Tags:
Depends on:
Blocks:
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Vladimir Litvak - 2010-07-19 13:49:51 +0200

I have the following code in my function in MEEGTools toolbox in SPM: data.cfg.trl(:, 4) = 1:length(trlind); data = ft_rejectvisual(cfg, data); % Figure out based on the output of FT function what trials and channels to % reject trlsel = ones(1, length(trlind)); trlsel(data.cfg.trl(:, 4)) = 0; This was once suggested by Robert. The idea is that rejectvisual should update the trl and I use it to figure out which trials were rejected. This used to work but doesn't any more as data.cfg.trl is empty in the output.

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Jan-Mathijs Schoffelen - 2010-07-19 14:08:13 +0200

This probably is related to the stuff documented here: http://fieldtrip.fcdonders.nl/development/ensure_consistend_trial_definition and http://fieldtrip.fcdonders.nl/faq/is_it_possible_to_keep_track_of_trial-specific_information_in_my_fieldtrip_analysis_pipeline If understood correctly, you rely on ft_rejectvisual to prune the trl-matrix which is hidden in the data.cfg. Trial-specific information (coded by column # >3) has moved to data.trialinfo. Probably, changing data.cfg.trl(:,4) = 1:length(trlind) into data.trialinfo = [1:numel(trlind)]'; and according changes later on will fix the problem.