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st: RE: Re: equation


From   "FEIVESON, ALAN H. (AL) (JSC-SK) (NASA)" <alan.h.feiveson@nasa.gov>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Re: equation
Date   Mon, 3 Mar 2003 08:30:26 -0600

Victor -

 Do you mean you want an equation that will exactly reproduce Y or
approximately reproduce Y? How were your Y-values obtained? Do they have
measurement errors in them, or are they in any other way, unrepeatable? You
can always find a N-1 degree polynomial that will exactly go through N
values of Y for distinct X, but that would most likely be a meaningless
exercise.
Al Feiveson

-----Original Message-----
From: victor michael zammit [mailto:vmz@vol.net.mt]
Sent: Friday, February 28, 2003 11:51 AM
To: statalist@hsphsun2.harvard.edu
Subject: st: Re: equation


Hello,
Is there such a thing as an equation that would satisfy the following data :
X   Y
1    2
2    3
3    4
4    5
5    6
6    7
7    6
8    8
9    10
10  12
11  10
12  8
13  8.5
14  9
15  8
16  7
17  6
18  5
19  4
20  3
hope for the best
Victor.

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