def run_friedman_smooth(x, y, span):
N = len(x)<EOL>weight = numpy.ones(N)<EOL>results = numpy.zeros(N)<EOL>residuals = numpy.zeros(N)<EOL>mace.smooth(x, y, weight, span, <NUM_LIT:1>, <NUM_LIT>, results, residuals)<EOL>return results, residuals<EOL>
Run the FORTRAN smoother.