Classification of polynomial regression: simple or multiple (conceptual doubt)

Dear list,

I'm posting in the R-help list due to:
- Not knowing a better place for it;
- I would like to know the opinion of more specialized people.

What is the best place to classify polynomial regressions (Y = bo +
b1X + b2X^2 + ... + bnX^n): single or multiple linear regression?

Regards,

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Jose Claudio Faria
Estatistica
UESC/DCET/Brasil
joseclaudio.faria at gmail.com
Telefones:
55(73)3680.5545 - UESC
55(73)9100.7351 - TIM
55(73)8817.6159 - OI
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