Path: news.mathworks.com!not-for-mail
From: <HIDDEN>
Newsgroups: comp.soft-sys.matlab
Subject: comparison of slopes
Date: Tue, 11 May 2010 10:54:06 +0000 (UTC)
Organization: Umea Univ
Lines: 11
Message-ID: <hsbd0d$dnp$1@fred.mathworks.com>
Reply-To: <HIDDEN>
NNTP-Posting-Host: webapp-02-blr.mathworks.com
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
X-Trace: fred.mathworks.com 1273575246 14073 172.30.248.37 (11 May 2010 10:54:06 GMT)
X-Complaints-To: news@mathworks.com
NNTP-Posting-Date: Tue, 11 May 2010 10:54:06 +0000 (UTC)
X-Newsreader: MATLAB Central Newsreader 2150692
Xref: news.mathworks.com comp.soft-sys.matlab:634521

Hai Matlab Users , specifically stats toolbox experts.

Here is my problem. A general statistics problem, which might be solved by matlab.

I have 5 measurements of the deviation ( from a baseline) of a  temperature at 5 times of the day each day. I have made measurements for 50 days. So 5 * 50 measurements. 

Now I need to compare these deviations for all the days and see if there is a "pattern" repeating accross number of days. I have been thinking of using slopes (calculated using five measurements per day) and then compare the slopes. What test can achieve this in matlab ?Is there a better way of comparing the means or slopes knowing that they have been computed from five sample points only ?

Thank you

Greg