diff --git a/matlab/@dynDate/gt.m b/matlab/@dynDate/gt.m
deleted file mode 100644
index 1da3f3fd9..000000000
--- a/matlab/@dynDate/gt.m
+++ /dev/null
@@ -1,98 +0,0 @@
-function c = gt(a,b) % --*-- Unitary tests --*--
-
-%@info:
-%! @deftypefn {Function File} {@var{c} =} gt (@var{a},@var{b})
-%! @anchor{@dynDate/gt}
-%! @sp 1
-%! Overloads the gt (greater than) operator for the Dynare dates class (@ref{dynDate}).
-%! @sp 2
-%! @strong{Inputs}
-%! @sp 1
-%! @table @ @var
-%! @item a
-%! Dynare date object instantiated by @ref{dynDate}.
-%! @item b
-%! Dynare date object instantiated by @ref{dynDate}.
-%! @end table
-%! @sp 1
-%! @strong{Outputs}
-%! @sp 1
-%! @table @ @var
-%! @item c
-%! scalar integer equal to one if a>b, 0 otherwise.
-%! @end table
-%! @sp 2
-%! @strong{This function is called by:}
-%! @sp 2
-%! @strong{This function calls:}
-%!
-%! @end deftypefn
-%@eod:
-
-% Copyright (C) 2011-2013 Dynare Team
-%
-% This file is part of Dynare.
-%
-% Dynare is free software: you can redistribute it and/or modify
-% it under the terms of the GNU General Public License as published by
-% the Free Software Foundation, either version 3 of the License, or
-% (at your option) any later version.
-%
-% Dynare is distributed in the hope that it will be useful,
-% but WITHOUT ANY WARRANTY; without even the implied warranty of
-% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-% GNU General Public License for more details.
-%
-% You should have received a copy of the GNU General Public License
-% along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
-
-if nargin~=2
-    error('dynDate::eq: I need exactly two input arguments!')
-end
-
-if ~( isa(a,'dynDate') && isa(b,'dynDate'))
-    error(['dynDate::eq: Input arguments ' inputname(1) 'and ' inputname(2) ' have to be a dynDate objects!'])
-end
-
-if ~isequal(a.freq,b.freq)
-    error(['dynDate::eq: Input arguments ' inputname(1) 'and ' inputname(2) ' have no common frequencies!'])
-end
-
-if a.time(1)>b.time(1)
-    c = 1;
-elseif isequal(a.time(1),b.time(1))
-    if a.time(2)>b.time(2)
-        c = 1;
-    else
-        c = 0;
-    end
-else
-    c = 0;
-end
-
-%@test:1
-%$ % Define some dates
-%$ date_1 = 1950;
-%$ date_2 = '1950Q2';
-%$ date_3 = '1950Q3';
-%$ date_4 = '1950Q1';
-%$ date_5 = '1949Q2';
-%$
-%$ % Call the tested routine.
-%$ d1 = dynDate(date_1);
-%$ d2 = dynDate(date_2);
-%$ d3 = dynDate(date_3);
-%$ d4 = dynDate(date_4);
-%$ d5 = dynDate(date_5);
-%$ i1 = (d2>d3);
-%$ i2 = (d3>d4);
-%$ i3 = (d4>d2);
-%$ i4 = (d5>d4);
-%$
-%$ % Check the results.
-%$ t(1) = dyn_assert(i1,0);
-%$ t(2) = dyn_assert(i2,1);
-%$ t(3) = dyn_assert(i3,0);
-%$ t(4) = dyn_assert(i4,0);
-%$ T = all(t);
-%@eof:1
diff --git a/matlab/@dynDates/gt.m b/matlab/@dynDates/gt.m
new file mode 100644
index 000000000..0bb17dfb7
--- /dev/null
+++ b/matlab/@dynDates/gt.m
@@ -0,0 +1,109 @@
+function C = gt(A,B)
+
+% Overloads the > operator for dynDates objects.
+%
+% INPUTS 
+%  o A    dynDates object with n or 1 elements.
+%  o B    dynDates object with n or 1 elements.
+%
+% OUTPUTS 
+%  o C    column vector of max(n,1) elements (zeros or ones).
+
+% Copyright (C) 2013 Dynare Team
+%
+% This file is part of Dynare.
+%
+% Dynare is free software: you can redistribute it and/or modify
+% it under the terms of the GNU General Public License as published by
+% the Free Software Foundation, either version 3 of the License, or
+% (at your option) any later version.
+%
+% Dynare is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
+
+if ~isequal(nargin,2)
+    error('dynDates::gt: I need exactly two input arguments!')
+end
+
+if ~isa(A,'dynDates') || ~isa(B,'dynDates')
+    error(['dynDates::gt: Input arguments ''' inputname(1) ''' and ''' inputname(2) ''' have to be a dynDates objects!'])
+end
+
+if ~isequal(A.freq,B.freq)
+    C = 0;
+    return
+end
+
+if isequal(A.ndat, B.ndat)
+    C = NaN(A.ndat,1);
+    for i=1:A.ndat
+        C(i) = compare_vectors(@gt, A.time(i,:), B.time(i,:));
+    end
+else
+    if isequal(A.ndat,1) && isequal(B.ndat,1)
+        C = compare_vectors(@gt, A.time, B.time);
+    elseif isequal(A.ndat,1)
+        C = NaN(B.ndat,1);
+        for i=1:B.ndat
+            C(i) = compare_vectors(@gt, A.time, B.time(i,:));
+        end
+    elseif isequal(B.ndat,1)
+        C = NaN(A.ndat,1);
+        for i=1:A.ndat
+            C(i) = compare_vectors(@gt, A.time(i,:), B.time);
+        end
+    else
+        C = 0;
+    end
+end
+
+%@test:1
+%$ % Define some dates
+%$ date_2 = '1950Q2';
+%$ date_3 = '1950Q3';
+%$ date_4 = '1950Q1';
+%$ date_5 = '1949Q2';
+%$
+%$ % Call the tested routine.
+%$ d2 = dynDates(date_2);
+%$ d3 = dynDates(date_3);
+%$ d4 = dynDates(date_4);
+%$ d5 = dynDates(date_5);
+%$ i1 = (d2>d3);
+%$ i2 = (d3>d4);
+%$ i3 = (d4>d2);
+%$ i4 = (d5>d4);
+%$
+%$ % Check the results.
+%$ t(1) = dyn_assert(i1,0);
+%$ t(2) = dyn_assert(i2,1);
+%$ t(3) = dyn_assert(i3,0);
+%$ t(4) = dyn_assert(i4,0);
+%$ T = all(t);
+%@eof:1
+
+%@test:2
+%$ % Define some dates
+%$ B1 = '1945Q1';
+%$ B2 = '1945Q2';
+%$ B3 = '1945Q3';
+%$ B4 = '1945Q4';
+%$ B5 = '1950Q1';
+%$
+%$ % Create dynDates objects.
+%$ dd = dynDates(B1,B2,B3,B4);
+%$
+%$ % Check the results.
+%$ t(1) = dyn_assert(dynDates(B1)>dynDates(B2),0);
+%$ t(2) = dyn_assert(dynDates(B2)>dynDates(B1),1);
+%$ t(3) = dyn_assert(dynDates(B5)>dynDates(B1),1);
+%$ t(4) = dyn_assert(dd>dynDates(B5),zeros(4,1));
+%$ t(5) = dyn_assert(dynDates(B5)>dd,ones(4,1));
+%$ t(6) = dyn_assert(dynDates(B1)>dd,[0; zeros(3,1)]);
+%$ T = all(t);
+%@eof:2
\ No newline at end of file