Reference

All functions
diff(<optcheck>) diff(<summary.optcheck>)	Elementwise difference between potential and optimal solutions.
optimCheck optimCheck-package	Graphical and numerical checks for mode-finding routines.
optim_proj()	Projection plot test.
optim_refit()	Refined optimization test.
plot(<optproj>)	Projection plots for optimization routines.
print(<optcheck>) print(<summary.optcheck>)	Print method for optcheck and summary.optcheck objects.
summary(<optproj>)	summary method for projection plots.
summary(<optrefit>)	summary method for optrefit objects.