ENC: RES: saidas - eta

[José Fernando Pesquero]

Hi,

I have a mean mensal time series for Brazil with 10 years and I would
like to plot a line graphic with an area average (aave) that has just
the "Septembers" for example..
I usually use a gs or write 10 averaged files for each September and
create a new ctl to open them.
Is there another way to do that? Is it possible to graphic a line with
an expression..??
Thanks

Jose Fernando Pesquero