vb_loadspec_make_trial_sample

 make list of start-end samples from LoadSpec
 [usage]
   [samples] = vb_loadspec_make_trial_sample(loadspec)
 [input]
   loadspec : <required> <<struct>> LoadSpec
            :  .Trigger : [Ntrial x1 double] sample number list of trigger
            :  .Pretrigger : [x1 double] number of sample before trigger 
            :  .Posttrigger : [x1 double] number of sample after trigger
            :  .TrialNumber : [Ntrial x1 double] trial index list
 [output]
    samples : [Ntrial x 2] list of from-to
            :  if trigger data in loadspec is invalid, return empty
 [note]

 [history]
   2008-02-29 (Sako) initial version
   2009-07-28 (Sako) modified to return empty if trigger data is invalid

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

0001 function [samples] = vb_loadspec_make_trial_sample(loadspec)
0002 % make list of start-end samples from LoadSpec
0003 % [usage]
0004 %   [samples] = vb_loadspec_make_trial_sample(loadspec)
0005 % [input]
0006 %   loadspec : <required> <<struct>> LoadSpec
0007 %            :  .Trigger : [Ntrial x1 double] sample number list of trigger
0008 %            :  .Pretrigger : [x1 double] number of sample before trigger
0009 %            :  .Posttrigger : [x1 double] number of sample after trigger
0010 %            :  .TrialNumber : [Ntrial x1 double] trial index list
0011 % [output]
0012 %    samples : [Ntrial x 2] list of from-to
0013 %            :  if trigger data in loadspec is invalid, return empty
0014 % [note]
0015 %
0016 % [history]
0017 %   2008-02-29 (Sako) initial version
0018 %   2009-07-28 (Sako) modified to return empty if trigger data is invalid
0019 %
0020 % Copyright (C) 2011, ATR All Rights Reserved.
0021 % License : New BSD License(see VBMEG_LICENSE.txt)
0022 
0023 % --- CHECK ARGUMENTS --- %
0024 if ~exist('loadspec', 'var'), loadspec = []; end
0025 [trigger, pretrigger, posttrigger] = inner_check_arguments(loadspec);
0026 
0027 % --- MAIN PROCEDURE --------------------------------------------------------- %
0028 %
0029 if isempty(trigger) || isempty(pretrigger) || isempty(posttrigger)
0030   samples = [];
0031   return;
0032 end
0033 
0034 samples = [(trigger-pretrigger), (trigger+posttrigger)];
0035 return
0036 %
0037 % --- END OF MAIN PROCEDURE -------------------------------------------------- %
0038 
0039 % --- INNER FUNCTIONS -------------------------------------------------------- %
0040 %
0041 % --- inner_check_arguments()
0042 %
0043 function [trigger, pretrigger, posttrigger] = inner_check_arguments(loadspec)
0044 func_ = mfilename;
0045 
0046 trigger = [];
0047 pretrigger = [];
0048 posttrigger = [];
0049 if isempty(loadspec)
0050 %   fprintf('(%s)loadspec is a required parameter\n', func_);
0051   return;
0052 end
0053 
0054 if ~isfield(loadspec, 'Trigger') || isempty(loadspec.Trigger) ...
0055     || ~isfield(loadspec, 'Pretrigger') || isempty(loadspec.Pretrigger) ...
0056     || ~isfield(loadspec, 'Posttrigger') || isempty(loadspec.Posttrigger)
0057 %   fprintf('(%s)invalid trigger in loadspec\n', func_);
0058   return;
0059 end
0060 
0061 trigger = vb_util_arrange_list(loadspec.Trigger);
0062 pretrigger = loadspec.Pretrigger;
0063 posttrigger = loadspec.Posttrigger;
0064 return;
0065 %
0066 % --- end of inner_check_arguments()
0067 %
0068 % --- END OF INNER FUNCTIONS ------------------------------------------------- %
0069 
0070 %%% END OF FILE %%%