%MAX Dataset minfunction [s,I] = min(a,b,dim)if nargin == 1   [s,I] = min(a.d);elseif nargin == 2   if ~isa(a,'dataset')      s = b;      s.d = min(a,b.d);   elseif ~isa(b,'dataset')      s = a;      s.d = min(a.d,b);   else      s = a;      s.d = min(a.d,b.d);   endelseif nargin == 3   if ~isempty(b)      error('min with two matrices to compare and a working dimension is not supporte')   end   if dim == 1      [s,I] = min(a.d,[],1);   elseif dim == 2      s = a;      [s.d,I] = min(a.d,[],2);      featlist = 'min';   else      error('Dimension should be 1 or 2')   endendreturn