pop_editeventvals.m

含有多种ICA算法的eeglab工具箱

          set(objevent, 'string', num2str(valnum)); 
          
          % update commands
          % ---------------
          oldcom = { oldcom{:} 'delete', valnum };
      
      end;
    
     case { 'assign' 'changefield' }, % **********************************************************
      
      if gui, % GUI case
          
          field    = tmparg;
          objfield = findobj('parent', gcf, 'tag', field);
          editval     = get(objfield, 'string');
          if ~isempty(editval) & ~isempty(str2num(editval)), editval = str2num(editval); end;

          % update history
          % --------------
          oldcom = { oldcom{:} 'changefield' { valnum field editval }};
      
      else % command line case
          
          valnum  = tmparg{1};
          field   = tmparg{2};
          editval = tmparg{3};
          
      end;
          
      % latency and duration case
      % -------------------------
      if strcmp( field, 'latency') & ~isempty(editval)
          if isfield(EEG.event, 'epoch')
               editval = eeg_lat2point( editval, EEG.event(valnum).epoch, ...
                                       EEG.srate, [EEG.xmin EEG.xmax]*1000, 1E-3);
          else editval = (editval- EEG.xmin)*EEG.srate+1;
          end;
      end;
      if strcmp( field, 'duration') & ~isempty(editval)
          if isfield(EEG.event, 'epoch')
               editval = editval/1000*EEG.srate; % milliseconds
          else editval = editval*EEG.srate;      % seconds
          end;
      end;
      
      % adapt to other formats
      % ----------------------
      EEG.event(valnum) = setfield(EEG.event(valnum), field, editval);
      EEG.event = checkconsistency(EEG.event, valnum, field);
      
      % update urevents
      % ---------------
      if isfield(EEG, 'urevent') & isfield(EEG.event, 'urevent')
          urvalnum  = EEG.event(valnum).urevent;
          
          % latency case
          % ------------
          if strcmp( field, 'latency') & ~isempty(editval)
              if isfield(EEG.urevent, 'epoch')
                  urepoch = EEG.urevent(urvalnum).epoch;
                  
                  
                  % find closest event latency
                  % --------------------------
                  if valnum<length(EEG.event)
                      if EEG.event(valnum+1).epoch == urepoch
                          urlatency = EEG.urevent(EEG.event(valnum+1).urevent).latency;
                          latency   = EEG.event(valnum+1).latency;
                      end;
                  end;
                  if valnum>1
                      if EEG.event(valnum-1).epoch == urepoch
                          urlatency = EEG.urevent(EEG.event(valnum-1).urevent).latency;
                          latency   = EEG.event(valnum-1).latency;
                      end;
                  end;
                  
                  % update event
                  % ------------
                  if exist('urlatency') ~=1
                      disp('Urevent not updated: could not find other event in the epoch');
                  else
                      editval = urlatency - ( latency - editval ); % new latency value
                  end;
              else 
                  editval = eeg_urlatency(EEG.event, EEG.event(valnum).latency);
              end;
          elseif strcmp( field, 'latency') % empty editval
              EEG.event(valnum).latency = NaN;
          end;
          
          % duration case
          % ------------
          if strcmp( field, 'duration') & ~isempty(editval)
              if isfield(EEG.event, 'epoch')
                   editval = editval/1000*EEG.srate; % milliseconds -> point
              else editval = editval*EEG.srate;      % seconds -> point
              end;
          end;
          EEG.urevent = setfield(EEG.urevent, {urvalnum}, field, editval);
      end;
      
     case 'sort', % **********************************************************
      
      if gui % retrieve data
          
          field1 = get(findobj('parent', gcf, 'tag', 'listbox1'), 'value');
          field2 = get(findobj('parent', gcf, 'tag', 'listbox2'), 'value');
          dir1   = get(findobj('parent', gcf, 'tag', 'order1'),   'value');
          dir2   = get(findobj('parent', gcf, 'tag', 'order2'),   'value');
          
          if field1 > 1, field1 = allfields{field1-1}; else return; end;
          if field2 > 1, field1 = allfields{field2-1}; else field2 = []; end;
          
          % update history
          % --------------
          oldcom = { oldcom{:} 'sort' { field1 dir1 field2 dir2 } };

      else % command line
          field1 = tmparg{1};
          if length(tmparg) < 2, dir1 = 0;
          else                   dir1 = tmparg{2}; 
          end;
          if length(tmparg) < 3, field2 = [];
          else                   field2 = tmparg{3}; 
          end;
          if length(tmparg) < 4, dir2 = 0;
          else                   dir2 = tmparg{4}; 
          end;
      end;
      
      if ~isempty(field2)
          try, eval(['tmparray = cell2mat( { EEG.event.' field2 ' } );']);
          catch, eval(['tmparray = { EEG.event.' field2 ' };']);
          end;
          if strcmp(field2, 'latency') & EEG.trials > 1
              tmparray = eeg_point2lat(tmparray, {EEG.event.epoch}, EEG.srate, [EEG.xmin EEG.xmax], 1);
          end;
          [X I] = mysort( tmparray );
          if dir2 == 1, I = I(end:-1:1); end;
          events = EEG.event(I);
      else
          events = EEG.event;
      end;  
      try,   eval(['tmparray = cell2mat( { events.' field1 ' } );']);
      catch, eval(['tmparray = { events.' field1 ' };']);
      end;
      if strcmp( field1, 'latency') & EEG.trials > 1
          tmparray = eeg_point2lat(tmparray, {events.epoch}, EEG.srate, [EEG.xmin EEG.xmax], 1);
      end;
      [X I] = mysort( tmparray );
      if dir1 == 1, I = I(end:-1:1); end;
      EEG.event = events(I);
      
      if gui
          % warn user
          % ---------
          warndlg2('Sorting done');
      else 
          noeventcheck  = 1; % otherwise infinite recursion with eeg_checkset
      end;
      
    end; % end switch
    end; % end loop

    % save userdata
    % -------------
    if gui
        userdata{1} = EEG;
        userdata{2} = oldcom;
        set(gcf, 'userdata', userdata);
        pop_editeventvals('goto', shift);              
    else
        if ~exist('noeventcheck')
            EEG = eeg_checkset(EEG, 'eventconsistency');
            EEG = eeg_checkset(EEG, 'checkur');
        end;
    end;
    return;
end;

% ----------------------
% graphic interface part
% ----------------------

if isempty(EEG.event)
    disp('Getevent: cannot deal with empty event structure');
    return;
end;   

allfields = fieldnames(EEG.event);
tmpind = strmatch('urevent', allfields);
allfields(tmpind) = [];

if nargin<2
    % add field values
    % ----------------
    geometry = { [2 0.5] };
    tmpstr = sprintf('Edit event field values (currently %d events)',length(EEG.event));
    uilist = { { 'Style', 'text', 'string', tmpstr, 'fontweight', 'bold'  } ...
               { 'Style', 'pushbutton', 'string', 'Delete event', 'callback', 'pop_editeventvals(''delete'');'  }};

    for index = 1:length(allfields) 

        geometry = { geometry{:} [1 1 1 1] };
        
        % input string
        % ------------
        if strcmp( allfields{index}, 'latency') | strcmp( allfields{index}, 'duration') 
            if EEG.trials > 1
                 inputstr =  [ allfields{index} ' (ms)'];
            else inputstr =  [ allfields{index} ' (sec)'];
            end;   
		else inputstr =  allfields{index};
		end;
        
		% callback for displaying help
		% ----------------------------
        if index <= length( EEG.eventdescription )
             tmptext = EEG.eventdescription{ index };
			 if ~isempty(tmptext)
				 if size(tmptext,1) > 15,    stringtext = [ tmptext(1,1:15) '...' ]; 
				 else                        stringtext = tmptext(1,:); 
				 end;
			 else stringtext = 'no-description'; tmptext = 'no-description';
			 end;
        else stringtext = 'no-description'; tmptext = 'no-description';
        end;
		cbbutton = ['questdlg2(' vararg2str(tmptext) ...
					',''Description of field ''''' allfields{index} ''''''', ''OK'', ''OK'');' ];

        % create control
        % --------------
        cbedit = [ 'pop_editeventvals(''assign'', ''' allfields{index} ''');' ]; 
		uilist   = { uilist{:}, { }, ...
					 { 'Style', 'pushbutton', 'string', inputstr, 'callback',cbbutton  }, ...
					 { 'Style', 'edit', 'tag', allfields{index}, 'string', '', 'callback', cbedit } ...
                     { } };
    end;

    % add buttons
    % -----------
    geometry = { geometry{:} [1] [1.2 0.6 0.6 1 0.6 0.6 1.2] [1.2 0.6 0.6 1 0.6 0.6 1.2] [2 1 2] };
    
    tpappend = 'Append event after the current event';
    tpinsert = 'Insert event before the current event';
    tporigin = 'Original index of the event (in EEG.urevent table)';
    uilist   = { uilist{:}, ...
          { }, ...
          { },{ },{ }, {'Style', 'text', 'string', 'Event Num', 'fontweight', 'bold' }, { },{ },{ }, ...
          { 'Style', 'pushbutton', 'string', 'Insert event',  'callback', 'pop_editeventvals(''append'', 0);', 'tooltipstring', tpinsert }, ...
          { 'Style', 'pushbutton', 'string', '<<',            'callback', 'pop_editeventvals(''goto'', -10);' }, ...
          { 'Style', 'pushbutton', 'string', '<',             'callback', 'pop_editeventvals(''goto'', -1);' }, ...
          { 'Style', 'edit',       'string', '1',             'callback', 'pop_editeventvals(''goto'', 0);', 'tag', 'numval' }, ...
          { 'Style', 'pushbutton', 'string', '>',             'callback', 'pop_editeventvals(''goto'', 1);' }, ...
          { 'Style', 'pushbutton', 'string', '>>',            'callback', 'pop_editeventvals(''goto'', 10);' }, ...
          { 'Style', 'pushbutton', 'string', 'Append event',  'callback', 'pop_editeventvals(''append'', 1);', 'tooltipstring', tpappend }, ...
          { }, { 'Style', 'text',  'string', ' ', 'tag', 'original' 'horizontalalignment' 'center' 'tooltipstring' tporigin } { } };

    % add sorting options
    % -------------------
    listboxtext = 'No field selected';  
    for index = 1:length(allfields) 
         listboxtext = [ listboxtext '|' allfields{index} ]; 
    end;
    geometry = { geometry{:} [1] [1 1 1] [1 1 1] [1 1.5 0.5] };
    uilist = {  uilist{:}, ...
         { 'Style', 'text',       'string', 'Re-order events (for review only)', 'fontweight', 'bold'  }, ...
         { 'Style', 'text',       'string', 'Main sorting field:'  }, ...
         { 'Style', 'listbox',    'string', listboxtext, 'tag', 'listbox1' }, ...
         { 'Style', 'checkbox',   'string', 'Click for decreasing order', 'tag', 'order1' } ...
         { 'Style', 'text',       'string', 'Secondary sorting field:'  }, ...
         { 'Style', 'listbox',    'string', listboxtext, 'tag', 'listbox2' }, ...
         { 'Style', 'checkbox',   'string', 'Click for decreasing order', 'tag', 'order2' }, ...
         { 'Style', 'pushbutton', 'string', 'Re-sort', 'callback', 'pop_editeventvals(''sort'');' }, ...
         { }, { }};
   
    userdata = { EEG {} };
    inputgui( geometry, uilist, 'pophelp(''pop_editeventvals'');', ...
                                  'Edit event values -- pop_editeventvals()', userdata, 'plot');
    pop_editeventvals('goto', 0);
    
    % wait for figure
    % ---------------
    fig = gcf;
    waitfor( findobj('parent', fig, 'tag', 'ok'), 'userdata');
    try, userdata = get(fig, 'userdata'); close(fig); % figure still exist ?
    catch, return; end;
    
    % transfer events
    % ---------------
    if ~isempty(userdata{2})
        com = sprintf('%s = pop_editeventvals(%s,%s);', inputname(1), inputname(1), vararg2str(userdata{2}));
    end;
    if isempty(findstr('''sort''', com))
        if ~isempty(userdata{2}) % some modification have been done
            EEG       = userdata{1};
            disp('Checking event consistency...');
            EEG = eeg_checkset(EEG, 'eventconsistency');
            EEG = eeg_checkset(EEG, 'checkur');
        end;
    else 
        com = '';
        disp('WARNING: all edits discarded because of event resorting. The EEGLAB event structure');
        disp('            must contain events sorted by latency (you may obtain an event structure');
        disp('            with resorted event by calling this function from the command line).');
    end;
    return;
    
end;
return;

% format the output field
% -----------------------
function strval = reformat( val, latencycondition, trialcondition, eventnum)
    if latencycondition
        if trialcondition
            strval = ['eeg_lat2point(' num2str(val) ', EEG.event(' int2str(eventnum) ').epoch, EEG.srate,[EEG.xmin EEG.xmax]*1000, 1E-3);' ];
        else    
            strval = [ '(' num2str(val) '-EEG.xmin)*EEG.srate+1;' ]; 
        end;
    else
        if isstr(val), strval = [ '''' val '''' ];
        else           strval = num2str(val);
        end;
    end;

% sort also empty values
% ----------------------
function [X, I] = mysort(tmparray);
    if iscell(tmparray)
        if all(cellfun('isreal', tmparray))
            tmpempty = cellfun('isempty', tmparray);
            tmparray(tmpempty) = { 0 };
            tmparray = cell2mat(tmparray);
        end;
    end;
    try, 
        [X I] = sort(tmparray);
    catch,
        sadf
        disp('Sorting failed. Check that selected fields contain uniform value format.');
        X = tmparray;
        I = 1:length(X);
    end;
    
% checkconsistency of new event
% -----------------------------
function eventtmp = checkconsistency(eventtmp, valnum, field)
    
    otherval = mod(valnum+1, length(eventtmp)+1)+1;
    
    if isstr(getfield(eventtmp(valnum), field)) & ~isstr(getfield(eventtmp(otherval), field))
        eventtmp(valnum) = setfield(eventtmp(valnum), field, str2num(getfield(eventtmp(valnum), field)));
    end;
    if ~isstr(getfield(eventtmp(valnum), field)) & isstr(getfield(eventtmp(otherval), field))
        eventtmp(valnum) = setfield(eventtmp(valnum), field, num2str(getfield(eventtmp(valnum), field)));
    end;
    if strcmpi(field, 'latency') & isempty(getfield(eventtmp(valnum), field))
        eventtmp(valnum).latency = NaN;
    end;