curve fit with guppi in gnumeric

[Francois Hardy <fhardy nrcan gc ca>]

Hi everyone,

does anyone know how (if possible) to make curve fits (for graphic of
scattered data) in gnumeric (linear regression, log, exponential curve
fits, ...).  Is it possible?  

I ask this because I have seen on the Guppi web site some linear
regressions on their graphics, and I have not been able to find these
options in the "guppe-gnumeric" stuff.

Is it possible, and how if so, to use guppi as a standalone application,
if the curve fit thing doesn't work in gnumeric?  I have not been able
to launch a "guppi" session (maybe I just don't know the proper
command).  I does work in gnumeric however. Can it be used in gnumeric
alone?

thank you,
Francois