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eeglab/functions/popfunc/pop_selectevent.m

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% POP_SELECTEVENT - Find events in an EEG dataset. If the dataset
% is the only input, a window pops up to
% ask for the relevant parameter values.
%
% Usage: >> [EEGOUT,event_indices] = pop_selectevent( EEG, 'key1', value1, ...
% 'key2', value2, ... );
% Input:
% EEG - EEG dataset
%
% Optional inputs:
% 'latency' - [latency_range] latency range of events to include
% Ex: 'latency','400 <= 700' Include all events with
% latnecy in the range [400,700]
% 'omitlatency' - [latency_range] latency range of events to exclude
% 'type' - [type_range] event type(s) to include
% Ex: 'type',3 or [2 3 5] or 1:10
% 'omittype' - [type_range], type(s) of events to exclude
% 'event' - [event_range], indices of events to include
% 'omitevent' - [event_range], indices of events to exclude
% 'USER_VAR' - [VAR_range], 'USER_VAR' is any user-defined field in
% the event structure. Includes events with values of
% field 'USER_VAR' in the specified range. Use [vector]
% format for integers, 'min<max' format for real numbers.
% 'omitUSER_VAR' - [VAR_range], 'USER_VAR' range of events to exclude
% 'select' - ['normal'|'inverse'] invert the selection of events.
% {Default is 'normal'}
% 'deleteepochs' - ['on'|'off'] 'on' = Delete ALL epochs that do not include
% any of the specified events {Default = 'on'}.
% This option is relevant only for epoched datasets derived
% from continuous datasets.
% 'invertepochs' - ['on'|'off'] 'on' = Invert epoch selection. {Default = 'off'}.
% 'deleteevents' - ['on'|'off'] 'on' = Delete ALL events except
% the selected events. {Default = 'off'}.
% 'renametype' - [string] rename the type of selected events with the
% string given as parameter. {Default is [], do not rename
% field}.
% 'oldtypefield' - [string] in conjunction with the previous parameter,
% create a new field (whose 'name' is provided as parameter)
% to store the (old) type of the event whose type has been
% renamed. {Default is [], do not create field}.
%
% Outputs:
% EEGOUT - EEG dataset with the selected events only
% event_indices - indexes of the selected events
%
% Ex: [EEGTARGETS,target_indices] = pop_selectevent(EEG,'type',[1 6 11 16 21]);
%
% % Returns ONLY THOSE epochs containing any of the 5 specified
% types of target events.
%
% Note: By default, if several optional inputs are given, the function
% performs their conjunction (&).
% Boundary events are keeped by default??. (6/12/2014 Ramon)
%
% Author: Arnaud Delorme, CNL / Salk Institute, 27 Jan 2002-
%
% See also: EEG_EVENTFORMAT, POP_IMPORTEVENT
% Copyright (C) Arnaud Delorme, CNL / Salk Institute, 27 Jan 2002, arno@salk.edu
%
% This file is part of EEGLAB, see http://www.eeglab.org
% for the documentation and details.
%
% Redistribution and use in source and binary forms, with or without
% modification, are permitted provided that the following conditions are met:
%
% 1. Redistributions of source code must retain the above copyright notice,
% this list of conditions and the following disclaimer.
%
% 2. Redistributions in binary form must reproduce the above copyright notice,
% this list of conditions and the following disclaimer in the documentation
% and/or other materials provided with the distribution.
%
% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
% AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
% IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
% ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
% LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
% CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
% SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
% INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
% CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
% ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
% THE POSSIBILITY OF SUCH DAMAGE.
%02/01/2002 added inputgui and finalize function - ad
%02/06/2002 work on the header and event format - sm & ad
%02/09/2002 modify function according to new structure - ad
%02/12/2002 add getepoch compatibility - ad
%02/19/2002 add event indices & correct event selection - ad
function [EEG, Ievent, com] = pop_selectevent(EEG, varargin);
if nargin < 1
help pop_selectevent;
return;
end
Ievent = [];
com ='';
event_indices = [];
% note that this function is also used for epochs
% -----------------------------------------------
I = [];
if isempty(EEG.event)
disp('Getevent: cannot deal with empty event structure');
return;
end;
% remove the event field if present
% ---------------------------------
allfields = fieldnames(EEG.event);
indexmatch = strmatch('urevent', allfields);
if ~isempty(indexmatch)
allfields = { allfields{1:indexmatch-1} allfields{indexmatch+1:end} };
end
if nargin<2
geometry = { [0.6 2.1 1.2 0.8 ] };
uilist = { ...
{ 'Style', 'text', 'string', 'Field', 'horizontalalignment', 'center', 'fontweight', 'bold' }, ...
{} ...
{ 'Style', 'text', 'string', 'Selection', 'fontweight', 'bold' }, ...
{ 'Style', 'text', 'string', 'Set=NOT THESE', 'fontweight', 'bold' } };
% add all fields to graphic interface
% -----------------------------------
ind1 = strmatch('type', allfields, 'exact');
ind2 = strmatch('latency' , allfields, 'exact');
ind3 = strmatch('duration', allfields, 'exact');
neworder = [ ind2 ind3 ind1 setdiff(1:length(allfields), [ind1 ind2 ind3]) ];
allfields = { allfields{neworder} };
for index = 1:length(allfields)
% format the description to fit a help box
% ----------------------------------------
if index <= length( EEG.eventdescription )
tmptext = EEG.eventdescription{ neworder(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 (use menu Edit > Event Field)';
end
else stringtext = 'no description'; tmptext = 'no description (use menu Edit > Event Field)';
end
descrip = { 'string', stringtext, 'callback', ['questdlg2(' vararg2str(tmptext) ...
',''Description of field ''''' allfields{index} ''''''', ''OK'', ''OK'');' ] };
% create the gui for this field
% -----------------------------
textfield = allfields{index};
if strcmp(textfield, 'latency') || strcmp(textfield, 'duration')
if EEG.trials > 1, textfield = [ textfield ' (ms)' ];
else textfield = [ textfield ' (s)' ];
end
middletxt = { { 'Style', 'text', 'string', 'min' } { 'Style', 'edit', 'string', '' 'tag' [ 'min' allfields{index} ] } ...
{ 'Style', 'text', 'string', 'max' } { 'Style', 'edit', 'string', '' 'tag' [ 'max' allfields{index} ] } };
middlegeom = [ 0.3 0.35 0.3 0.35 ];
elseif strcmp(textfield, 'type')
commandtype = [ 'tmpEEG = get(gcbf, ''userdata'');' ...
'if ~isfield(tmpEEG.event, ''type'')' ...
' errordlg2(''No type field'');' ...
'else' ...
' tmpevent = tmpEEG.event;' ...
' if isnumeric(tmpEEG.event(1).type),' ...
' [tmps,tmpstr] = pop_chansel(unique([ tmpevent.type ]));' ...
' else,' ...
' [tmps,tmpstr] = pop_chansel(unique({ tmpevent.type }));' ...
' end;' ...
' if ~isempty(tmps)' ...
' set(findobj(''parent'', gcbf, ''tag'', ''type''), ''string'', tmpstr);' ...
' end;' ...
'end;' ...
'clear tmps tmpv tmpEEG tmpevent tmpstr tmpfieldnames;' ];
middletxt = { { 'Style', 'edit', 'string', '' 'tag' 'type' } { 'Style', 'pushbutton', 'string', '...' 'callback' commandtype } };
middlegeom = [ 0.95 0.35 ];
else
middletxt = { { 'Style', 'edit', 'string', '' 'tag' textfield } };
middlegeom = 1.3;
end
geometry = { geometry{:} [0.55 0.65 middlegeom 0.1 0.22 0.1] };
uilist = { uilist{:}, ...
{ 'Style', 'text', 'string', textfield }, ...
{ 'Style', 'pushbutton', descrip{:}, 'horizontalalignment', 'left' }, ...
middletxt{:}, ...
{ }, { 'Style', 'checkbox', 'string', ' ' 'tag' [ 'not' allfields{index} ] },{ } };
end
% event indices
% -------------
uilist = { uilist{:} ...
{ 'Style', 'text', 'string', 'Event indices' }, ...
{ }, ...
{ 'Style', 'edit', 'string', '' 'tag' 'indices' }, ...
{ }, { 'Style', 'checkbox', 'string', ' ' 'tag' 'notindices' },{ } };
geometry = { geometry{:} [0.55 0.65 1.3 0.1 0.22 0.1] };
% rename/keep events
% ------------------
geometry = { geometry{:} [1] [1] [.1 2 .3 .2] [.1 1.5 0.5 0.5] [.1 1 0.5 1] [.1 1 0.5 1] };
uilist = { uilist{:} { } ...
{ 'Style', 'text', 'string','Event selection', 'fontweight', 'bold' } ...
{} { 'Style', 'checkbox', 'string','Select all events NOT selected above (Set this button and "all BUT" buttons (above) for logical OR)' 'tag' 'invertevent' } { } { } ...
{} { 'Style', 'checkbox', 'string','Keep only selected events and remove all other events', ...
'value', fastif(EEG.trials>1, 0, 1) 'tag' 'rmevents' } { } { } ...
{} { 'Style', 'text', 'string', 'Rename selected event type(s) as type:' } ...
{ 'Style', 'edit', 'string', '' 'tag' 'rename' } { } ...
{} { 'Style', 'text', 'string', 'Retain old event type name(s) in (new) field named:' } ...
{ 'Style', 'edit', 'string', '' 'tag' 'retainfield' } { } };
% epoch selections
% ----------------
if EEG.trials > 1
geometry = { geometry{:} [1] [0.1 2 0.5 0.5] [0.1 2 0.5 0.5]};
uilist = { uilist{:} ...
{ 'Style', 'text', 'string','Epoch selection', 'fontweight', 'bold' } ...
{ } { 'Style', 'checkbox', 'string','Remove epochs not referenced by any selected event', ...
'value', 1 'tag' 'rmepochs' } { } { } ...
{ } { 'Style', 'checkbox', 'string','Invert epoch selection', ...
'value', 0 'tag' 'invertepoch' } { } { } };
end
[results tmp2 tmp3 res] = inputgui( 'geometry', geometry, 'uilist', uilist, 'helpcom', 'pophelp(''pop_selectevent'')', 'title', 'Select events -- pop_selectevent()', 'userdata', EEG);
if length(results) == 0, return; end
% decode inputs
% -------------
args = {};
if ~res.notindices, args = { args{:}, 'event', eval( [ '[' res.indices ']' ]) };
else args = { args{:}, 'omitevent', eval( [ '[' res.indices ']' ]) };
end
for index = 1:length(allfields)
textfield = allfields{index};
tmpflag = getfield(res, [ 'not' textfield ]);
if strcmp(textfield, 'duration') || strcmp(textfield, 'latency')
tmpres = [];
minlat = getfield(res, [ 'min' textfield ]);
maxlat = getfield(res, [ 'max' textfield ]);
if ~isempty(minlat) && ~isempty(maxlat)
tmpres = [ minlat '<=' maxlat ];
end
else
tmpres = getfield(res, textfield);
try, tmpres2 = eval( [ '[' tmpres ']' ] );
if ~isnumeric(tmpres2),
if tmpres(1) == ''''
tmpres = eval( [ '{' tmpres '}' ] );
else
tmpres = parsetxt( tmpres );
end
else
tmpres = tmpres2;
end
catch, tmpres = parsetxt( tmpres ); end
end
if ~isempty(tmpres)
if ~tmpflag, args = { args{:}, textfield, tmpres };
else args = { args{:}, [ 'omit' textfield], tmpres };
end
end
end
if res.invertevent, args = { args{:}, 'select', 'inverse' }; end
if ~isempty(res.rename), args = { args{:}, 'renametype', res.rename }; end
if ~isempty(res.retainfield), args = { args{:}, 'oldtypefield', res.retainfield }; end
args = { args{:}, 'deleteevents', fastif(res.rmevents, 'on', 'off') };
if EEG.trials > 1
args = { args{:}, 'deleteepochs', fastif(res.rmepochs , 'on', 'off') };
args = { args{:}, 'invertepochs', fastif(res.invertepoch , 'on', 'off') };
end
else % no interactive inputs
args = varargin;
end
% setting default for the structure
% ---------------------------------
fieldlist = { 'event' 'integer' [] [1:length(EEG.event)] ;
'omitevent' 'integer' [] [] ;
'deleteepochs' 'string' { 'yes','no','on','off' } 'on' ;
'invertepochs' 'string' { 'on','off' } 'off' ;
'deleteevents' 'string' { 'yes','no','on','off' } 'off';
'renametype' 'string' [] '';
'oldtypefield' 'string' [] '';
'select' 'string' { 'normal','inverse','remove','keep' } 'normal' };
for index = 1:length(allfields)
fieldlist{end+1, 1} = allfields{index};
fieldlist{end , 2} = '';
fieldlist{end+1, 1} = [ 'omit' allfields{index} ];
fieldlist{end , 2} = '';
end
g = finputcheck( args, fieldlist, 'pop_selectevent');
if ischar(g), error(g); end
if isempty(g.event), g.event = [1:length(EEG.event)]; end
if strcmpi(g.select, 'remove'), g.select = 'inverse'; end
if strcmpi(g.select, 'keep' ), g.select = 'normal'; end
if strcmpi(g.deleteepochs, 'yes' ), g.deleteepochs = 'on'; end
if strcmpi(g.deleteepochs, 'no' ), g.deleteepochs = 'off'; end
if ~isempty(g.oldtypefield) && isempty(g.renametype)
error('A name for the new type must be defined');
end
% select the events to keep
% -------------------------
Ievent = g.event;
Ieventrem = g.omitevent;
for index = 1:length(allfields)
% convert the value if the field is a string field
% ------------------------------------------------
tmpvar = getfield(g, {1}, allfields{index});
if ~isempty(tmpvar)
if isnumeric(tmpvar)
if ischar(getfield( EEG.event, {1}, allfields{index}))
for tmpind = 1:length(tmpvar)
tmpvartmp{tmpind} = num2str(tmpvar(tmpind));
end
tmpvar = tmpvartmp;
end
elseif ischar(tmpvar) && isempty( findstr(tmpvar, '<='))
if isnumeric(getfield( EEG.event, {1}, allfields{index}))
error(['numerical values must be entered for field ''' allfields{index} '''']);
end
end
end
if ischar(tmpvar) && isempty( findstr(tmpvar, '<='))
tmpvar = { tmpvar };
end
% scan each field of EEG.event
% ----------------------------
if ~isempty( tmpvar )
if iscell( tmpvar ) % strings
eval( [ 'tmpevent = EEG.event; tmpvarvalue = {tmpevent(:).' allfields{index} '};'] );
Ieventtmp = [];
for index2 = 1:length( tmpvar )
tmpindex = transpose(find(strcmp(deblank(tmpvar{index2}), deblank(tmpvarvalue))));%Ramon: for bug 1318. Also for compatibility(strmatch will be deleted in next versions of MATLAB)
%tmpindex = strmatch( tmpvar{index2}, tmpvarvalue, 'exact');
if isempty( tmpindex ),
fprintf('Warning: ''%s'' field value ''%s'' not found\n', allfields{index}, tmpvar{index2});
end
Ieventtmp = unique_bc( [ Ieventtmp; tmpindex ]);
end
Ievent = intersect_bc( Ievent, Ieventtmp );
elseif ischar( tmpvar ) % real range
tmpevent = EEG.event;
% ======== JRI BUGFIX 3/6/14
%eval( [ 'tmpvarvalue = [ tmpevent(:).' allfields{index} ' ];'] );
tmpvarvalue = safeConcatenate(EEG.event, allfields{index});
min = eval(tmpvar(1:findstr(tmpvar, '<=')-1));
max = eval(tmpvar(findstr(tmpvar, '<=')+2:end));
if strcmp(allfields{index}, 'latency')
if EEG.trials > 1
tmpevent = EEG.event;
tmpvarvalue = eeg_point2lat(tmpvarvalue, {tmpevent.epoch}, EEG.srate, ...
[EEG.xmin EEG.xmax]*1000, 1E-3);
else
tmpvarvalue = eeg_point2lat(tmpvarvalue, ones(1,length(EEG.event)), EEG.srate, ...
[EEG.xmin EEG.xmax], 1);
end
end
if strcmp(allfields{index}, 'duration')
if EEG.trials > 1, tmpvarvalue = tmpvarvalue/EEG.srate*1000;
else tmpvarvalue = tmpvarvalue/EEG.srate;
end
end
Ieventlow = find( tmpvarvalue >= min);
Ieventhigh = find( tmpvarvalue <= max);
Ievent = intersect_bc( Ievent, intersect( Ieventlow, Ieventhigh ) );
else
if strcmp(allfields{index}, 'latency')
fprintf(['pop_selectevent warning: latencies are continuous values\n' ...
'so you may use the ''a<=b'' notation to select these values\n']);
end
% ======== JRI BUGFIX 3/6/14
%eval( [ 'tmpevent = EEG.event; tmpvarvalue = [ tmpevent(:).' allfields{index} ' ];'] );
tmpvarvalue = safeConcatenate(EEG.event, allfields{index});
Ieventtmp = [];
for index2 = 1:length( tmpvar )
Ieventtmp = unique_bc( [ Ieventtmp find(tmpvarvalue == tmpvar(index2)) ] );
end
Ievent = intersect_bc( Ievent, Ieventtmp );
end
end
% scan each field of EEG.event (omit)
% -----------------------------------
tmpvar = eval(['g.omit' allfields{index} ]);
if eval(['ischar(EEG.event(1).' allfields{index} ')' ]) && isnumeric(tmpvar) && ~isempty(tmpvar)
for tmpind = 1:length(tmpvar)
tmpvartmp{tmpind} = num2str(tmpvar(tmpind));
end
tmpvar = tmpvartmp;
end
if ischar(tmpvar) && isempty( findstr(tmpvar, '<='))
tmpvar = { tmpvar };
end
if ~isempty( tmpvar )
if iscell( tmpvar )
eval( [ 'tmpevent = EEG.event; tmpvarvalue = {tmpevent(:).' allfields{index} '};'] );
Ieventtmp = [];
for index2 = 1:length( tmpvar )
tmpindex = strmatch( tmpvar{index2}, tmpvarvalue, 'exact');
if isempty( tmpindex ),
fprintf('Warning: ''%s'' field value ''%s'' not found\n', allfields{index}, tmpvar{index2});
end
Ieventtmp = unique_bc( [ Ieventtmp; tmpindex ]);
end
Ieventrem = union_bc( Ieventrem, Ieventtmp );
elseif ischar( tmpvar )
tmpevent = EEG.event;
% ======== JRI BUGFIX 3/6/14
%eval( [ 'tmpvarvalue = [ tmpevent(:).' allfields{index} ' ];'] );
tmpvarvalue = safeConcatenate(EEG.event, allfields{index});
min = eval(tmpvar(1:findstr(tmpvar, '<=')-1));
max = eval(tmpvar(findstr(tmpvar, '<=')+2:end));
if strcmp(allfields{index}, 'latency')
if EEG.trials > 1
tmpevent = EEG.event;
tmpvarvalue = eeg_point2lat(tmpvarvalue, {tmpevent.epoch}, EEG.srate, ...
[EEG.xmin EEG.xmax]*1000, 1E-3);
else
tmpvarvalue = eeg_point2lat(tmpvarvalue, ones(1,length(EEG.event)), EEG.srate, ...
[EEG.xmin EEG.xmax], 1);
end
end
if strcmp(allfields{index}, 'duration')
if EEG.trials > 1, tmpvarvalue = tmpvarvalue/EEG.srate*1000;
else tmpvarvalue = tmpvarvalue/EEG.srate;
end
end
Ieventlow = find( tmpvarvalue > min);
Ieventhigh = find( tmpvarvalue < max);
Ieventrem = union_bc( Ieventrem, intersect( Ieventlow, Ieventhigh ) );
else
if strcmp(allfields{index}, 'latency')
fprintf(['pop_selectevent warning: latencies are continuous values\n' ...
'so you may use the ''a<=b'' notation to select these values\n']);
end
tmpevent = EEG.event;
% ======== JRI BUGFIX 3/6/14
%eval( [ 'tmpvarvalue = [ tmpevent(:).' allfields{index} ' ];'] );
tmpvarvalue = safeConcatenate(EEG.event, allfields{index});
Ieventtmp = [];
for index2 = 1:length( tmpvar )
Ieventtmp = unique_bc( [ Ieventtmp find( tmpvarvalue ==tmpvar(index2)) ] );
end
Ieventrem = union_bc( Ieventrem, Ieventtmp );
end
end
end
Ievent = setdiff_bc( Ievent, Ieventrem);
if strcmp(g.select, 'inverse')
Ievent = setdiff_bc( [1:length(EEG.event)], Ievent );
end
% checking if trying to remove boundary events (in continuous data)
eeglab_options;
if ~isempty(EEG.event) && isfield(EEG.event, 'type')
if ischar(EEG.event(1).type) && EEG.trials == 1
Ieventrem = setdiff_bc([1:length(EEG.event)], Ievent );
tmpevent = EEG.event;
boundaryindex = eeg_findboundaries(tmpevent(Ieventrem));
if ~isempty(boundaryindex)
boundaryindex = Ieventrem(boundaryindex);
Ievent = [ Ievent boundaryindex ];
end
Ievent = sort(Ievent);
else
boundaryindex = [];
end
else
boundaryindex = [];
end
% rename events if necessary
% --------------------------
if ~isempty(g.renametype)
fprintf('Pop_selectevent: renaming %d selected events (out of %d)\n', length(Ievent), length(EEG.event));
if ~isempty(g.oldtypefield)
for index = setdiff_bc(Ievent, boundaryindex)
eval([ 'EEG.event(index).' g.oldtypefield '= EEG.event(index).type;']);
EEG.event(index).type = g.renametype;
end
else
for index = setdiff_bc(Ievent, boundaryindex)
EEG.event(index).type = g.renametype;
end
end
end
% Events: delete epochs
% ---------------------
if strcmp( lower(g.deleteepochs), 'on') && EEG.trials > 1
% ask for confirmation
% --------------------
Iepoch = ones(1, EEG.trials);
for index = 1:length(Ievent)
Iepoch(EEG.event(Ievent(index)).epoch) = 0;
end
if strcmpi(g.invertepochs, 'on')
Iepoch = ~Iepoch;
end
Iepoch = find(Iepoch == 0);
if length(Iepoch) == 0,
error('Empty dataset: all epochs have been removed');
end
if nargin < 2
ButtonName=questdlg2(strvcat([ 'Warning: keep ' num2str(length(Iepoch)) ' epochs (delete ' num2str(EEG.trials-length(Iepoch)) ...
' unreferenced epochs)' ]), ...
'Confirmation', ...
'Cancel', 'Ok','Ok');
else ButtonName = 'ok'; end
switch lower(ButtonName),
case 'cancel', return;
case 'ok',
if strcmpi(g.deleteevents, 'on')
EEG.event = EEG.event(Ievent);
end
EEG = pop_select(EEG, 'trial', Iepoch);
end % switch
else
% delete events if necessary
% --------------------------
if strcmpi(g.deleteevents, 'on')
EEG.event = EEG.event(Ievent);
end
end
EEG = eeg_checkset(EEG, 'eventconsistency');
% generate the output command
% ---------------------------
argsout = {};
for index =1:2:length(args)
if ~isempty(args{index+1})
argsout = { argsout{:} args{index} args{index+1}};
end
end
com = sprintf('EEG = pop_selectevent( EEG, %s);', vararg2str(argsout));
% chop the text so that it fits into the description window
% ---------------------------------------------------------
function chopedtext = choptext( tmptext )
chopedtext = '';
while length(tmptext) > 30
blanks = findstr( tmptext, ' ');
[tmp I] = min( abs(blanks - 30) );
chopedtext = [ chopedtext ''' 10 ''' tmptext(1:blanks(I)) ];
tmptext = tmptext(blanks(I)+1:end);
end;
chopedtext = [ chopedtext ''' 10 ''' tmptext];
chopedtext = chopedtext(7:end);
return;
% ======== JRI BUGFIX 3/6/14
% safely concatenate a numeric field that may contain empty values, replacing them with nans
% ---------------------------------------------------------
function tmpvarvalue = safeConcatenate(S, fieldname)
try
tmpvarvalue = {S.(fieldname)};
tmpvarvalue = cellfun(@(x) fastif(isempty(x),nan,x), tmpvarvalue);
catch
%keep this style for backwards compatibility?
eval( [ 'tmpvarvalue = {S(:).' fieldname ' };'] );
for itmp = 1:length(tmpvarvalue),
if isempty(tmpvarvalue{itmp}),
tmpvarvalue{itmp} = nan;
end
end
tmpvarvalue = cell2mat(tmpvarvalue);
end
% ======== JRI BUGFIX 3/6/14