nl_compare	nl_compare
nl_derivatives	nl_derivatives
nl_fit	nl_fit
nl_het	nl_het
nl_icc	nl_icc
nl_knots	nl_knots
nl_plot	nl_plot
nl_predict	nl_predict
nl_r2	nl_r2
nl_summary	nl_summary
nl_turning_points	nl_turning_points
print.nl_fit	print.nl_fit
print.summary_nl_fit	print.summary_nl_fit
summary.nl_fit	summary.nl_fit
