[R] Plotting several functions in the same display (again)

[Julio Sergio]

Duncan Murdoch <murdoch.duncan <at> gmail.com> writes:

> The curve() function is trying to be clever, but it's not.  You can 
> probably get what you want using curve(fi(380)(x), add=TRUE).  It treats 
> the "x" argument specially.
> 
> Duncan Murdoch
> 

Thanks Duncan,

Your solution worked perfectly!