[ferret_users] Statistical significance

To: "ferret_users@xxxxxxxx" <ferret_users@xxxxxxxx>
Subject: [ferret_users] Statistical significance
From: Hussen Seid <hussen.seid1@xxxxxxxxx>
Date: Wed, 27 Mar 2013 14:43:09 +0200
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:x-beenthere:x-received:received-spf:mime-version :x-received:date:message-id:subject:from:to:x-original-sender :x-original-authentication-results:precedence:mailing-list:list-id :x-google-group-id:list-post:list-help:list-archive:list-unsubscribe :content-type; bh=oNCkRaQR7wSGcJDLvngqTgSmOPzZart/YtrAQg+ag0E=; b=QuSKzrbsQKdLYtaT6dWsjmAcimDl0JO+4gJFCdhHh4ltDJ+/XP8pCksvKrBE73vVV2 95Tz2ur7uRgBLaGstOQaEtTq4sKPBxrdFpCHXLjkhnJIbBDh0KI41H1bXtD/t9BBIvWD QkKCekXpfHBjLPFsIRx4dt2QmsLsUSkE2KY+sIocTtkYO47UT1juh0oeTG9BdxTVEHky AzccWcbABECpvKuFQx1UJ8v1KofHCdYQ8RQkGkavaBSXexeCLDRfZZBp7UGVOMN1d7VV Vqjtg5BlbiKhTXSiv+B02e4RbEcPtMvn+cbKvde9VLTQyyOQl8H8B1lhofNsR5LjlqXc fvqA==
List-archive: <http://groups.google.com/a/noaa.gov/group/ferret_users/?hl=en_US>
List-help: <http://support.google.com/a/noaa.gov/bin/topic.py?hl=en_US&topic=25838>, <mailto:ferret_users+help@noaa.gov>
List-id: <ferret_users.noaa.gov>
List-post: <http://groups.google.com/a/noaa.gov/group/ferret_users/post?hl=en_US>, <mailto:ferret_users@noaa.gov>
List-unsubscribe: <http://groups.google.com/a/noaa.gov/group/ferret_users/subscribe?hl=en_US>, <mailto:googlegroups-manage+809428289204+unsubscribe@googlegroups.com>
Mailing-list: list ferret_users@xxxxxxxx; contact ferret_users+owners@xxxxxxxx
Sender: owner-ferret_users@xxxxxxxx

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 my script for composite analysis:

use ICTP-RegCM3-JJAS.nc ! Seasonal mean rainfall from 1989 to 2008 period
let clim=PR[d=1, x=22E:52E,y=16S:22N,l=1:20@ave]
let elnino=PR[d=1, x=22E:52E,y=16S:22N,l=9]
let ano=(elnino-clim)*86400
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 archive, but couldn't find appropriate answer.

Any help?

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

Previous by thread: [ferret_users] Re: How to plot a text data in ferret (data and plot model attached);
Next by thread: [ferret_users] Statistical significance

[Thread Prev][Thread Next][Index] Contact Us

Dept of Commerce / NOAA / OAR / PMEL / Ferret