leave channel label list in MEGinfo.EEGinfo according as ch_list
[usage]
eeginfo = vb_meginfo_filter_EEGinfo(meginfo, ch_list)
[input]
meginfo : <required> <<struct>> MEG header information
ch_list : <required> valid channel label list
[output]
eeginfo : <<struct>> MEGinfo.EEGinfo whose fields are as follows
: there are two types *_name (label name) and *_ix (index)
: .all_ch : all channel
: .eeg_ch : eeg channel
: .null_ch : null channel
: .etc_ch : etc channel
: .trigger_ch : trigger channel
: .ecg_ch : ecg channel
: .refmg_ch : refference magnetometer
: sizes of these fields are [N x 1]
[note]
if there is not appropriate label, the channel will be removed
[history]
2007-07-13 (Sako) initial version
Copyright (C) 2011, ATR All Rights Reserved.
License : New BSD License(see VBMEG_LICENSE.txt)0001 function eeginfo = vb_meginfo_filter_EEGinfo(meginfo, ch_list) 0002 % leave channel label list in MEGinfo.EEGinfo according as ch_list 0003 % 0004 % [usage] 0005 % eeginfo = vb_meginfo_filter_EEGinfo(meginfo, ch_list) 0006 % 0007 % [input] 0008 % meginfo : <required> <<struct>> MEG header information 0009 % ch_list : <required> valid channel label list 0010 % 0011 % [output] 0012 % eeginfo : <<struct>> MEGinfo.EEGinfo whose fields are as follows 0013 % : there are two types *_name (label name) and *_ix (index) 0014 % : .all_ch : all channel 0015 % : .eeg_ch : eeg channel 0016 % : .null_ch : null channel 0017 % : .etc_ch : etc channel 0018 % : .trigger_ch : trigger channel 0019 % : .ecg_ch : ecg channel 0020 % : .refmg_ch : refference magnetometer 0021 % : sizes of these fields are [N x 1] 0022 % 0023 % [note] 0024 % if there is not appropriate label, the channel will be removed 0025 % 0026 % [history] 0027 % 2007-07-13 (Sako) initial version 0028 % 0029 % Copyright (C) 2011, ATR All Rights Reserved. 0030 % License : New BSD License(see VBMEG_LICENSE.txt) 0031 0032 % --- CHECK ARGUMENTS --- % 0033 if ~exist('meginfo', 'var') meginfo = []; end 0034 if ~exist('ch_list', 'var') ch_list = []; end 0035 [meginfo, ch_list] = inner_check_arguments(meginfo, ch_list); 0036 0037 % --- MAIN PROCEDURE --------------------------------------------------------- % 0038 % 0039 eeginfo = meginfo.EEGinfo; 0040 0041 if isempty(meginfo.EEGinfo) || isempty(ch_list) 0042 return; 0043 end 0044 0045 field_ch_name = { ... 0046 'eeg_ch_name', ... 0047 'null_ch_name', ... 0048 'etc_ch_name', ... 0049 'trigger_ch_name', ... 0050 'ecg_ch_name', ... 0051 'refmg_ch_name' ... 0052 }; 0053 0054 field_ch_idx = { ... 0055 'eeg_ch_ix', ... 0056 'null_ch_ix', ... 0057 'etc_ch_ix', ... 0058 'trigger_ch_ix', ... 0059 'ecg_ch_ix', ... 0060 'refmg_ch_ix' ... 0061 }; 0062 0063 % 0064 % --- get channel type & make eeg data 0065 % 0066 start_pos = 1; 0067 0068 all_name = []; 0069 0070 for field_cnt = 1:length(field_ch_name) 0071 cur_field = field_ch_name{field_cnt}; 0072 cur_ix_field = field_ch_idx{field_cnt}; 0073 0074 if isfield(eeginfo, cur_field) 0075 [res,idx] = vb_util_check_numerical_lists(eeginfo.(cur_field), ch_list); 0076 if ~isempty(idx) 0077 eeginfo.(cur_field) = eeginfo.(cur_field)(idx,:); 0078 all_name = [all_name;eeginfo.(cur_field)]; 0079 0080 end_pos = start_pos + length(idx) - 1; 0081 eeginfo.(cur_ix_field) = [start_pos:end_pos]'; 0082 0083 start_pos = start_pos + length(idx); 0084 else 0085 eeginfo = rmfield(eeginfo, cur_field); 0086 eeginfo = rmfield(eeginfo, cur_ix_field); 0087 end 0088 end 0089 end 0090 0091 eeginfo.all_ch_name = all_name; 0092 eeginfo.all_ch_ix = [1:start_pos-1]'; 0093 0094 return; 0095 % 0096 % --- END OF MAIN PROCEDURE -------------------------------------------------- % 0097 0098 % --- INNER FUNCTIONS -------------------------------------------------------- % 0099 % 0100 % --- inner_check_arguments() 0101 % 0102 function [meginfo, ch_list] = inner_check_arguments(meginfo, ch_list) 0103 func_ = mfilename; 0104 0105 if isempty(meginfo) 0106 error('(%s)meginfo is a required parameter', func_); 0107 end 0108 0109 if ~isfield(meginfo, 'EEGinfo') 0110 meginfo.EEGinfo = []; 0111 end 0112 0113 if isempty(ch_list) 0114 % require no action 0115 end 0116 return; 0117 % 0118 % --- end of inner_check_arguments() 0119 % 0120 % --- END OF INNER FUNCTIONS ------------------------------------------------- % 0121 0122 %%% END OF FILE %%%