[R] Slicing an area....

[v.demartino2@virgilio.it]

I have interpolated a large number of data and obtained a regular x-y curve
(and its interpolated function).
My problem is that I need to slice the entire area delimited by the curve,
the x-axis and the two finite extremes of the curve  (starting from the
very bottom of the entire area) into smaller stripes of given (and different)
areas.

How can I do it?

Vittorio