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Message-ID: <30c82f5f0803021658l8a409c3i7ef854aa99f634f4@mail.gmail.com>
Date: 2008-03-03T00:58:10Z
From: Louise Hoffman
Subject: Need help to locate my mistake
In-Reply-To: <D6F0CF97-2F96-4CBF-9746-359512A8EDD5@auckland.ac.nz>

What if I need to calculate the variance for the fuel data?

Are there a 'R' way to do that?

I have derived
variance = (Y-x*theta)^T * (Y - x*theta) / (n-p)