make ChannelInfo from channel label
[usage]
channel_info = vb_eeginfo_make_channel_info(eeginfo, ch_labels, ch_type)
[input]
eeginfo : <required> <<struct>> EEGinfo
: - This must have the next fields.
: .ChannelName
: .ChannelID
: .ActiveChannel
: .ExtraChannelInfo
ch_labels : <optional> specified channel label list {Nchannel x 1}
ch_type : <optional> [0] | 1 channel type of channel_info
: 0) all (sensor channels and external channel(s)
: 1) only sensor channels
: 2) only external channel(s)
[output]
channel_info : <<struct>>
: .Active [Nchannel x 1]
: .Name {Nchannel x 1}
: .Type [Nchannel x 1]
: .ID [Nchannel x 1]
: - Nchannel = Nchannel_eeg + Nchannel_ext
[note]
@see vb_megfile_make_channel_info.m
[history]
2009-07-16 (Sako) initial version
Copyright (C) 2011, ATR All Rights Reserved.
License : New BSD License(see VBMEG_LICENSE.txt)0001 function channel_info = vb_eeginfo_make_channel_info(eeginfo, ch_labels, ch_type) 0002 % make ChannelInfo from channel label 0003 % [usage] 0004 % channel_info = vb_eeginfo_make_channel_info(eeginfo, ch_labels, ch_type) 0005 % [input] 0006 % eeginfo : <required> <<struct>> EEGinfo 0007 % : - This must have the next fields. 0008 % : .ChannelName 0009 % : .ChannelID 0010 % : .ActiveChannel 0011 % : .ExtraChannelInfo 0012 % ch_labels : <optional> specified channel label list {Nchannel x 1} 0013 % ch_type : <optional> [0] | 1 channel type of channel_info 0014 % : 0) all (sensor channels and external channel(s) 0015 % : 1) only sensor channels 0016 % : 2) only external channel(s) 0017 % [output] 0018 % channel_info : <<struct>> 0019 % : .Active [Nchannel x 1] 0020 % : .Name {Nchannel x 1} 0021 % : .Type [Nchannel x 1] 0022 % : .ID [Nchannel x 1] 0023 % : - Nchannel = Nchannel_eeg + Nchannel_ext 0024 % [note] 0025 % @see vb_megfile_make_channel_info.m 0026 % [history] 0027 % 2009-07-16 (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('eeginfo', 'var'), eeginfo = ''; end 0034 if ~exist('ch_labels', 'var'), ch_labels = []; end 0035 if ~exist('ch_type', 'var'), ch_type = []; end 0036 [eeginfo, ch_labels, ch_type] = ... 0037 inner_check_arguments(eeginfo, ch_labels, ch_type); 0038 0039 % --- MAIN PROCEDURE --------------------------------------------------------- % 0040 % 0041 org_eeg_label = vb_eeginfo_get_channel_label(eeginfo); 0042 org_ext_label = vb_eeginfo_get_channel_label_extra(eeginfo, false); 0043 0044 % --- matching with target channel labels 0045 0046 % ----- EEG CHANNELS 0047 target_eeg_labels = []; 0048 if ch_type ~= 2 && ~isempty(org_eeg_label) && ~isempty(ch_labels) 0049 [eeg_idx] = vb_util_get_index(org_eeg_label, ch_labels); 0050 if ~isempty(eeg_idx) 0051 target_eeg_labels = org_eeg_label(eeg_idx); 0052 end 0053 else 0054 eeg_idx = []; 0055 end 0056 0057 % ----- EXTRA CHANNELS 0058 target_ext_labels = []; 0059 if ch_type ~= 1 && ~isempty(org_ext_label) && ~isempty(ch_labels) 0060 [ext_idx] = vb_util_get_index(org_ext_label, ch_labels); 0061 if ~isempty(ext_idx) 0062 target_ext_labels = org_ext_label(ext_idx); 0063 end 0064 else 0065 ext_idx = []; 0066 end 0067 0068 extra_info = eeginfo.ExtraChannelInfo; 0069 0070 % ----- Active 0071 if vb_info_active_channel_is_valid(eeginfo) 0072 active_ch = vb_info_get_active_channel(eeginfo); 0073 eeg_active = active_ch(eeg_idx); 0074 0075 if ~isempty(extra_info.Channel_active) 0076 ext_active = extra_info.Channel_active(ext_idx); 0077 else 0078 % temporary 0079 Nch = length(ext_idx); 0080 ext_active = ones(Nch,1); 0081 end 0082 channel_info.Active = [eeg_active;ext_active]; 0083 else 0084 Nch = length(target_eeg_labels)+length(target_ext_labels); 0085 channel_info.Active = ones(Nch,1); 0086 end 0087 0088 % ----- Name 0089 channel_info.Name = [target_eeg_labels;target_ext_labels]; 0090 0091 % ----- Type 0092 % ----- all types are set '1' for now 0093 len_eeg_ch = length(target_eeg_labels); 0094 eeg_type = ones(len_eeg_ch, 1); 0095 0096 if ~isempty(extra_info.Channel_type) 0097 ext_type = extra_info.Channel_type(ext_idx); 0098 else 0099 % Nch = length(ext_idx); 0100 % ext_type = ones(Nch,1); 0101 % ----- undefined yet 0102 ext_type = []; 0103 end 0104 channel_info.Type = [eeg_type;ext_type]; 0105 0106 % ----- ID 0107 eeg_id = eeginfo.ChannelID(eeg_idx); 0108 ext_id = extra_info.Channel_id(ext_idx); 0109 channel_info.ID = [eeg_id;ext_id]; 0110 return; 0111 % 0112 % --- END OF MAIN PROCEDURE -------------------------------------------------- % 0113 0114 % --- INNER FUNCTIONS -------------------------------------------------------- % 0115 % 0116 % --- inner_check_arguments() 0117 % 0118 function [eeginfo, ch_labels, ch_type] = ... 0119 inner_check_arguments(eeginfo, ch_labels, ch_type) 0120 0121 func_ = mfilename; 0122 if isempty(eeginfo) 0123 error('(%s)eeginfo is a required parameter', func_); 0124 end 0125 0126 if isempty(ch_type) 0127 ch_type = 0; % all channels 0128 end 0129 return; 0130 % 0131 % --- end of inner_check_arguments() 0132 % 0133 % --- END OF INNER FUNCTIONS ------------------------------------------------- % 0134 0135 %%% END OF FILE %%%