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- Newsgroups: sci.math.stat
- Path: sparky!uunet!snorkelwacker.mit.edu!bloom-picayune.mit.edu!athena.mit.edu!chasman
- From: chasman@athena.mit.edu (David Chasman)
- Subject: QUESTION FROM AN IGNORANT CHEMIST
- Message-ID: <1992Nov12.154410.28408@athena.mit.edu>
- Sender: news@athena.mit.edu (News system)
- Nntp-Posting-Host: e40-008-11.mit.edu
- Organization: Massachusetts Institute of Technology
- Date: Thu, 12 Nov 1992 15:44:10 GMT
- Lines: 38
-
- This is probably a silly question, but I can't learn if I don't ask
- questions:
-
- I have the following data analysis problem:
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- I have a set on values: { y_i }
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- I hypothesize that these values are related to some x's
- by
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- y_i = sum_{n=1}^D x_n(i)
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- x_n(i) are just some values and more than 2 y_i may have an x_n(i) in common.
- Generally, D will be 1-10 :
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- For example :
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- x_1(1) = 1 x_1(2) = 1
- x_2(1) = 1 x_2(2) = 2
- x_3(1) = 2 x_3(2) = 1
- x_4(1) = 2 x_4(2) = 2
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- so: y_1 = 2 y_2 = 3 y_3 = 3 y_4 = 4
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- The questions are : (1) can I figure out what D is ?
- (2) can I giure out the x_n(i) ?
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- Answers to either question are appreciated
-
- Thankyou --David Chasman
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