vb_meginfo_init_sensor_weight_refmg

 set initial sensor weight for refmg channels
 [usage]
   [meg_info] = vb_meginfo_init_sensor_weight_refmg(meg_info, n_ch)
 [input]
   meg_info : <required> <<struct>> MEGinfo which will be updated
       n_ch : <required> number of refmg channels
 [output]
   meg_info : <<struct>> updated MEGinfo
 [note]
   initial value is eye(n_ch), n_ch by n_ch identity matrix
    1 0 0 0
    0 1 0 0
    0 0 1 0
    0 0 0 1
   @see vb_meginfo_set_sensor_weight_refmg.m
 [history]
   2011-07-20 (Sako) initial version

0001 function [meg_info] = vb_meginfo_init_sensor_weight_refmg(meg_info, n_ch)
0002 % set initial sensor weight for refmg channels
0003 % [usage]
0004 %   [meg_info] = vb_meginfo_init_sensor_weight_refmg(meg_info, n_ch)
0005 % [input]
0006 %   meg_info : <required> <<struct>> MEGinfo which will be updated
0007 %       n_ch : <required> number of refmg channels
0008 % [output]
0009 %   meg_info : <<struct>> updated MEGinfo
0010 % [note]
0011 %   initial value is eye(n_ch), n_ch by n_ch identity matrix
0012 %    1 0 0 0
0013 %    0 1 0 0
0014 %    0 0 1 0
0015 %    0 0 0 1
0016 %   @see vb_meginfo_set_sensor_weight_refmg.m
0017 % [history]
0018 %   2011-07-20 (Sako) initial version
0019 
0020 % --- CHECK ARGUMENTS --- %
0021 if ~exist('meg_info', 'var'), meg_info = []; end
0022 if ~exist('n_ch', 'var'), n_ch = []; end
0023 [meg_info, n_ch] = inner_check_arguments(meg_info, n_ch);
0024 
0025 % --- MAIN PROCEDURE --------------------------------------------------------- %
0026 %
0027 meg_info = vb_meginfo_set_sensor_weight_refmg(meg_info, eye(n_ch) );
0028 return;
0029 %
0030 % --- END OF MAIN PROCEDURE -------------------------------------------------- %
0031 
0032 
0033 % --- INNER FUNCTIONS -------------------------------------------------------- %
0034 %
0035 % --- inner_check_arguments()
0036 %
0037 function [meg_info, n_ch] = inner_check_arguments(meg_info, n_ch)
0038 func_ = mfilename;
0039 if isempty(meg_info)
0040   error('(%s) meg_info is a required parameter', func_);
0041 end
0042 
0043 if isempty(n_ch)
0044   error('(%s) n_ch is a required parameter', func_);
0045 end
0046 return;
0047 %
0048 % --- end of inner_check_arguments()
0049 
0050 % --- END OF FILE --- %