Dear Ferreters,
I'm doing composite analysis, and want to shade only anomalies that are 95% significant according to a two tailed t test.
Here is the sample of my script:
use
ICTP-RegCM3-JJAS.nc ! Seasonal mean rainfall from 1989 to 2008
period
let
clim=PR[d=1, l=1:20@ave] !climatology
let
elnino=(PR[d=1, l=3]+PR[d=1, l=9])/2 !average during events
let
ano=elnino-clim
shade
ano; go land 1 "" 1
How
can I shade anomalies that are 95% significant according to a
two-tailed t test?
I
went through the ferret email archive, but couldn't find appropriate
answer.
Any help is appreciated. Thanks,
Hussen
--
Hussen Seid Endris
Climate System Analysis Group
Department of Environmental and Geographical Science
University of Cape Town
Private Bag Rondebosch, 7701
Tel:
(+27) (0)74 222 4357