Description of vb_megfile_load

DESCRIPTION

 load MEGinfo struct from megfile and return it
 [usage]
   meginfo = vb_megfile_load_meginfo(megfile)
 [input]
    megfile : <required> <<file>> MEG-MAT file
 [output]
   MEGinfo : <<struct>> MEG information
 [note]
   
 [history]
   2007-05-25 (Sako) initial version

 Copyright (C) 2011, ATR All Rights Reserved.
 License : New BSD License(see VBMEG_LICENSE.txt)

CROSS-REFERENCE INFORMATION

vb_load_device load measurement file and get 'Measurement' and 'Device' information

vb_megfile_get_applicable_channel return applicable channel lists of MEG/EXTRA/REFMG

vb_megfile_get_channel_label_extra return label list of EXTRA channels by reading megfile

vb_megfile_get_channel_label_magx return label list of MAG_X channels by reading megfile

vb_megfile_get_channel_label_magy return label list of MAG_X channels by reading megfile

vb_megfile_get_channel_label_magz return label list of MAG_X channels by reading megfile

vb_megfile_get_channel_label_meg return label list of MEG channels by reading megfile

vb_megfile_get_channel_label_refmg return label list of REFFERENCE channels by reading megfile

vb_megfile_get_channel_label_whole return label list of all channels by reading megfile

vb_megfile_get_internal_data_ext return extra data which is internally stored in megfile

vb_megfile_get_sampling_frequency return valid sampling frequency from MEG-MAT file

vb_megfile_get_sensor_position_by_name return information of sensor position specified by name

vb_megfile_get_sensor_position_by_type return information of sensor position

vb_megfile_is_before_05b check megfile version before 0.5b or after

vb_megfile_load_data load specified data from MEG-MAT file

vb_megfile_load_data_external load specified data from MEG-MAT file which has data externally (binary)

vb_megfile_load_data_internal load specified data from MEG-MAT file which has data internally

vb_megfile_make_channel_info make ChannelInfo from channel label

vb_megfile_make_loaded_megfile make MEG-MAT file which includes loaded data and updated information

vb_megfile_patch_posfile update coordinates which have not been transformed

vb_megfile_remove_bias remove bias from MEG data

vb_loadspec_check check LoadSpec data

SOURCE CODE

0001 function MEGinfo = vb_megfile_load_meginfo(megfile)
0002 % load MEGinfo struct from megfile and return it
0003 % [usage]
0004 %   meginfo = vb_megfile_load_meginfo(megfile)
0005 % [input]
0006 %    megfile : <required> <<file>> MEG-MAT file
0007 % [output]
0008 %   MEGinfo : <<struct>> MEG information
0009 % [note]
0010 %
0011 % [history]
0012 %   2007-05-25 (Sako) initial version
0013 %
0014 % Copyright (C) 2011, ATR All Rights Reserved.
0015 % License : New BSD License(see VBMEG_LICENSE.txt)
0016 
0017 % --- CHECK ARGUMENTS --- %
0018 if ~exist('megfile', 'var'), megfile = []; end
0019 [megfile] = inner_check_arguments(megfile);
0020 
0021 % --- MAIN PROCEDURE --------------------------------------------------------- %
0022 %
0023 MEGinfo = [];
0024 load(megfile, 'MEGinfo');
0025 return;
0026 %
0027 % --- END OF MAIN PROCEDURE -------------------------------------------------- %
0028 
0029 % --- INNER FUNCTIONS -------------------------------------------------------- %
0030 %
0031 % --- inner_check_arguments()
0032 %
0033 function [megfile] = inner_check_arguments(megfile)
0034 func_ = mfilename;
0035 if isempty(megfile)
0036   error('(%s)megfile is a required parameter', func_);
0037 end
0038 
0039 if exist(megfile, 'file') ~= 2
0040   error('(%s)cannot find megfile : %s', func_, megfile);
0041 end
0042 return;
0043 %
0044 % --- end of inner_check_arguments()
0045 %
0046 % --- END OF INNER FUNCTIONS ------------------------------------------------- %
0047   
0048 % --- END OF FILE --- %

vb_megfile_load_meginfo

PURPOSE

SYNOPSIS

DESCRIPTION

CROSS-REFERENCE INFORMATION

SUBFUNCTIONS

SOURCE CODE