function c = lat_char ( i )

%*****************************************************************************80
%
%% LAT_CHAR returns a character for negative or positive latitude.
%
%  Licensing:
%
%    This code is distributed under the GNU LGPL license. 
%
%  Modified:
%
%    19 May 2016
%
%  Author:
%
%    John Burkardt
%
%  Parameters:
%
%    Input, integer I, is negative for negative latitude, 
%    and positive for positive latitude.
%
%    Output, character LAT_CHAR, is 'S' for negative latitude, and
%    'N' for positive latitude.
%
  if ( i < 0 )
    c = 'S';
  elseif ( 0 < i )
    c = 'N';
  else
    c = '?';
  end

  return
end