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modified uf_erpimage code, now works with multiple subjects #132

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modified uf_erpimage code, now works with multiple subjects #132

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26 changes: 18 additions & 8 deletions src/uf_toolbox/uf_erpimage.m
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Original file line number Diff line number Diff line change
Expand Up @@ -123,14 +123,14 @@
[EEG_out,sort_vector] = get_sortvector(cfg,EEG_out);

%% draw ERPimage or get output
if cfg.plot == 1
plot_erpimage(EEG_out,cfg,sort_vector)
end

evt_ix_out = plot_erpimage(EEG_out,cfg,sort_vector);
if nargout>0
outdata = EEG_out.data;
outsort = sort_vector;
varargout{1} = outdata;
varargout{2} = outsort;
varargout{3} = evt_ix_out;
end
end

Expand Down Expand Up @@ -354,6 +354,7 @@
end
keep_epoch(ix_remove) = [];
EEG_out.data = EEG_out.data(:,:,keep_epoch);
EEG_out.event_sel = EEG_out.urevent(keep_epoch);
fprintf('Aligning erpimage to event %s, %i epochs found\n',strjoin(cfg.alignto,':'),sum(keep_epoch))

[sort_vector,sort_vector_cell] = eeg_getepochevent(EEG_out,cfg.sort_alignto,cfg.sort_time*1000,cfg.sort_by); % output in ms
Expand All @@ -377,31 +378,40 @@
sort_vector = sort_vector(keep_epoch);
end

function [] = plot_erpimage(EEG_out,cfg,sort_vector)
function [evt_ix_out] = plot_erpimage(EEG_out,cfg,sort_vector)
if isempty(cfg.caxis)
cfg.caxis = prctile(EEG_out.data(:),[5 95]);
cfg.caxis = [-max(abs(cfg.caxis)) max(abs(cfg.caxis))];
end
evt_ix_out = size(EEG_out.data,2);
if isempty(cfg.split_by)


if cfg.plot == 1
erpimage(EEG_out.data,sort_vector,EEG_out.times,'',10,0,'caxis',cfg.caxis);
end
else
% [sort_vector,~] = eeg_getepochevent(EEG_out,cfg.alignto,[0,0],cfg.split_by); % output in ms
evt_tmp = {EEG_out.urevent.(cfg.split_by)};
evt_tmp = {EEG_out.event_sel.(cfg.split_by)};
evt = evt_tmp(cellfun(@(x)~isempty(x),evt_tmp));
evt = cellfun(@num2str,evt,'UniformOutput',0) % fixed by Nicolas Langer
evt = cellfun(@num2str,evt,'UniformOutput',0); % fixed by Nicolas Langer

splitlevel = unique(evt);
n_splits = length(splitlevel);
evt_ix_out = cell(1,n_splits);
for n = 1:n_splits
subplot(n_splits,1,n)

evt_ix = strcmp(evt,splitlevel{n});
evt_ix_out{n} = evt_ix;
if cfg.plot == 1
subplot(n_splits,1,n)
erpimage(EEG_out.data(:,:,evt_ix),sort_vector(evt_ix),EEG_out.times,'',10,0,'caxis',cfg.caxis);

title(sprintf('split by:%s, level:%s',cfg.split_by,splitlevel{n}))
end
end
end
if cfg.plot == 1
cmap = cbrewer('div','RdBu',256);
colormap(cmap(end:-1:1,:));
end
end