fiff_pick_types_evoked

 [res] = fiff_pick_types_evoked(orig,meg,eeg,stim,include,exclude)

 Pick desired channels types from evoked-response data

 orig      - The original data
 meg       - Include MEG channels
 eeg       - Include EEG channels
 stim      - Include stimulus channels
 include   - Additional channels to include (if empty, do not add any)
 exclude   - Channels to exclude (if empty, do not exclude any)

0001 function [res] = fiff_pick_types_evoked(orig,meg,eeg,stim,include,exclude)
0002 %
0003 % [res] = fiff_pick_types_evoked(orig,meg,eeg,stim,include,exclude)
0004 %
0005 % Pick desired channels types from evoked-response data
0006 %
0007 % orig      - The original data
0008 % meg       - Include MEG channels
0009 % eeg       - Include EEG channels
0010 % stim      - Include stimulus channels
0011 % include   - Additional channels to include (if empty, do not add any)
0012 % exclude   - Channels to exclude (if empty, do not exclude any)
0013 %
0014 %
0015 
0016 %
0017 %   Author : Matti Hamalainen, MGH Martinos Center
0018 %   License : BSD 3-clause
0019 %
0020 %
0021 %   Revision 1.10  2008/06/12 19:59:19  msh
0022 %   Fixed the help text
0023 %
0024 %   Revision 1.9  2007/12/23 17:01:24  msh
0025 %   Fixed error handling multiple datasets
0026 %
0027 %   Revision 1.8  2006/04/26 00:14:24  msh
0028 %   Return empty structure from fiff_pick_channels evoked and fiff_pick_types_evoked if there is no match.
0029 %   Accuracy checking was incorrect in mne_add_coil_defs
0030 %
0031 %   Revision 1.7  2006/04/23 15:29:40  msh
0032 %   Added MGH to the copyright
0033 %
0034 %   Revision 1.6  2006/04/21 11:33:17  msh
0035 %   Added raw segment reading routines
0036 %
0037 %   Revision 1.5  2006/04/20 23:33:20  msh
0038 %   Separated fiff_pick_channels and fiff_pick_types from the _evoked versions
0039 %
0040 %   Revision 1.4  2006/04/17 11:52:15  msh
0041 %   Added coil definition stuff
0042 %
0043 %   Revision 1.3  2006/04/15 12:21:00  msh
0044 %   Several small improvements
0045 %
0046 %   Revision 1.2  2006/04/14 15:49:49  msh
0047 %   Improved the channel selection code and added ch_names to measurement info.
0048 %
0049 %   Revision 1.1  2006/04/14 00:45:42  msh
0050 %   Added channel picking and fiff_invert_transform
0051 %
0052 %
0053 
0054 me='MNE:fiff_pick_types_evoked';
0055 
0056 if nargin == 5
0057     exclude = [];
0058 elseif nargin == 4
0059     include = [];
0060     exclude = [];
0061 elseif nargin == 3
0062     include = [];
0063     exclude = [];
0064     stim    = false;
0065 elseif nargin == 2
0066     include = [];
0067     exclude = [];
0068     stim    = false;
0069     eeg     = false;
0070 elseif nargin ~= 6
0071     error(me,'Incorrect number of arguments');
0072 end
0073 
0074 sel = fiff_pick_types(orig.info,meg,eeg,stim,include,exclude);
0075 
0076 if isempty(sel)
0077     res = [];
0078     fprintf(1,'Warning : No channels match the selection.\n');
0079     return;
0080 end
0081 
0082 res = orig;
0083 res.info.chs      = res.info.chs(sel);
0084 res.info.ch_names = res.info.ch_names(sel);
0085 %
0086 %   Create the reduced data set
0087 %
0088 for k = 1:length(res.evoked)
0089     res.evoked(k).epochs = res.evoked(k).epochs(sel,:);
0090 end
0091 res.info.nchan    = length(sel);
0092 
0093 return;
0094 
0095 end