%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%                 VTOOLS                 %%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 
%Victor Chavarrias (victor.chavarrias@deltares.nl)
%
%$Revision$
%$Date$
%$Author$
%$Id$
%$HeadURL$
%
%Check if monotonically increasing vector

function tf=mono_increase(y_int)
tf=all(diff(y_int)>0);
end