Re: Gnumeric regression is wrong?
- From: "Andreas J. Guelzow" <aguelzow math concordia ab ca>
- To: gnumeric-list gnome org
- Cc: Morten Welinder <terra diku dk>
- Subject: Re: Gnumeric regression is wrong?
- Date: Thu, 27 Sep 2001 18:18:09 -0600
For multiple regression there is defintiely much more wrong. Attached is
a gnumeric file in which the data analysis regression tool was used to
perform a regression of the dependent systolic blood pressure with
respect to the independent variables age and weight. Clearly the r
squared should not be -1.1 times 10 to the 12th... I would have liked to
see 0.8629.
This is current CVS.
Andreas
Andreas J. Guelzow wrote:
There is definitely something wrong with the regression calculations
in the data analysis tools. It seems that the standrard error for
the parameter estimates are switched (and then all the calculations
based on them seem to be wrong).
I'll try to locate the exact problem.
Andreas
--
Prof. Dr. Andreas J. Guelzow
Assoc. Prof of Mathematics
Concordia University College of Alberta
http://www.math.concordia.ab.ca/aguelzow
Attachment:
regression.gnumeric
Description: Binary data
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