ENH - use two input arguments for exist() function, see http://bugzilla.fieldtriptoolbox.org/show_bug.cgi?id=3100

Author: robertoostenveld

peer/peerslave.m

@@ -82,7 +82,7 @@ function peerslave(varargin)
 refusegroup = ft_getopt(varargin, 'refusegroup', {});
 refusehost  = ft_getopt(varargin, 'refusehost', {});
 
-if ~isempty(threads) && exist('maxNumCompThreads')
+if ~isempty(threads) && exist('maxNumCompThreads', 'file')
   % this function is only available from MATLAB version 7.5 (R2007b) upward
   % and has become deprecated in MATLAB version 7.9 (R2009b)
   ws = warning('off', 'MATLAB:maxNumCompThreads:Deprecated');

preproc/ft_preproc_medianfilter.m

@@ -41,7 +41,7 @@
 pad = ceil(order/2);
 dat = ft_preproc_padding(dat, 'localmean', pad);
 
-hasfast = exist('fastmedfilt1d');
+hasfast = exist('fastmedfilt1d', 'file');
 if hasfast == 2 || hasfast == 3
   % use fast median filter mex file
   for k = 1:size(dat,1)

private/statistics_wrapper.m

@@ -67,7 +67,7 @@
 cfg.avgoverroi  = ft_getopt(cfg, 'avgoverroi',  'no');
 
 % determine the type of the input and hence the output data
-if ~exist('OCTAVE_VERSION')
+if ~exist('OCTAVE_VERSION', 'builtin')
   [s, i] = dbstack;
   if length(s)>1
     [caller_path, caller_name, caller_ext] = fileparts(s(2).name);
@@ -280,7 +280,7 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 % determine the function handle to the intermediate-level statistics function
-if exist(['ft_statistics_' cfg.method])
+if exist(['ft_statistics_' cfg.method], 'file')
   statmethod = str2func(['ft_statistics_' cfg.method]);
 else
   error(sprintf('could not find the corresponding function for cfg.method="%s"\n', cfg.method));

utilities/hasyokogawa.m

@@ -47,11 +47,11 @@
 % other names. At the time of writing this, the new implementation is
 % version 1.4.
 
-if exist('getYkgwVersion')
+if exist('getYkgwVersion', 'file')
   res = getYkgwVersion();
   version = res.version;
 
-elseif exist('GetMeg160ADbitInfoM') || exist('GetMeg160ChannelInfoM') || exist('GetMeg160ContinuousRawDataM')
+elseif exist('GetMeg160ADbitInfoM', 'file') || exist('GetMeg160ChannelInfoM', 'file') || exist('GetMeg160ContinuousRawDataM', 'file')
   % start with unknown, try to refine the version
   version = 'unknown';
 
@@ -80,7 +80,7 @@
     m = lasterror;
     m.identifier;
     if strcmp(m.identifier, 'MATLAB:UndefinedFunction') || strcmp(m.identifier, 'MATLAB:FileIO:InvalidFid')
-      if (exist('GetMeg160ChannelInfoM') && exist('GetMeg160ContinuousRawDataM'));
+      if (exist('GetMeg160ChannelInfoM', 'file') && exist('GetMeg160ContinuousRawDataM', 'file'));
         version = '12bitBeta3';
       end
     end