[rrd-users] PREDICT: How does it work?

[Etienne-Marie de Boissieu]

I use the PREDICT function but i don't understand the operations made by
rrd.
I have several questions:

-How does rrd set t0 and what is gap between NOW and t0?

-What is the comptutation made by rrd?
 Is it (for value at sample t0):

   Avg[ Avg(t0-shift1-window ; t0-shift1) ; Avg(t0-shift2-window;t0-shift2)
]

Is it the only operation made by rrd for getting  prediction?

Thanks

Etienne Marie
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