enhancement - use ft_selectdata 'new'

git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@10217 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0

ft_denoise_synthetic.m

@@ -60,7 +60,7 @@
 cfg = ft_checkconfig(cfg, 'required', {'gradient'});
 
 % set the defaults
-if ~isfield(cfg, 'trials'), cfg.trials = 'all'; end
+cfg.trials = ft_getopt(cfg, 'trials', 'all', 1);
 
 % store the original type of the input data
 dtype = ft_datatype(data);
@@ -81,10 +81,10 @@
 end
 
 % select trials of interest
-if ~strcmp(cfg.trials, 'all')
-  fprintf('selecting %d trials\n', length(cfg.trials));
-  data = ft_selectdata(data, 'rpt', cfg.trials);
-end
+tmpcfg = keepfields(cfg, 'trials');
+data   = ft_selectdata(tmpcfg, data);
+% restore the provenance information
+[cfg, data] = rollback_provenance(cfg, data);
 
 % remember the original channel ordering
 labelorg = data.label;

ft_preprocessing.m

@@ -297,12 +297,13 @@
   end
 
   % set the defaults
-  if ~isfield(cfg, 'trials'), cfg.trials = 'all'; end
+  cfg.trials = ft_getopt(cfg, 'trials', 'all', 1);
 
   % select trials of interest
-  if ~strcmp(cfg.trials, 'all')
-    data = ft_selectdata(data, 'rpt', cfg.trials);
-  end
+  tmpcfg = keepfields(cfg, 'trials');
+  data   = ft_selectdata(tmpcfg, data);
+  % restore the provenance information
+  [cfg, data] = rollback_provenance(cfg, data);
 
   % translate the channel groups (like 'all' and 'MEG') into real labels
   cfg.channel = ft_channelselection(cfg.channel, data.label);

ft_redefinetrial.m

@@ -117,7 +117,13 @@
 % select trials of interest
 if ~strcmp(cfg.trials, 'all')
   if fb, fprintf('selecting %d trials\n', length(cfg.trials)); end
-  data = ft_selectdata(data, 'rpt', cfg.trials);
+
+  % select trials of interest
+  tmpcfg = keepfields(cfg, 'trials');
+  data   = ft_selectdata(tmpcfg, data);
+  % restore the provenance information
+  [cfg, data] = rollback_provenance(cfg, data);
+
   if length(cfg.offset)>1 && length(cfg.offset)~=length(cfg.trials)
     cfg.offset=cfg.offset(cfg.trials);
   end