Ploting graphic

[Erico Araujo Rocha gast brasilien]

Hallo, 

I have one problem and maybe you can help.

Actually I am working with Kdeveloper and I would like to know if there is one 
function already made that would plot one grafic in the screen if I give one
vector containing X  and Y values. If possible the function should choose the
correct scale depending on the range of points given. 

I would be very happy if you could give me some tips.

Thank' s for your attention

Erico