[R] PRESS again

[Jacob van Wyk]

Sorry for the repeat.
The PRESS statistic is defined as
sum(y-yhat(i))^2, where yhat(i) denotes the ith predicted value using
all the data except the ith case (as used typically in linear models).
Thanks again
Jacob



Jacob L van Wyk
Department of Mathematics and Statistics
Rand Afrikaans University
P O Box 524
Auckland Park 2006
South Africa
Tel: +27-11-489-3080
Fax: +27-11-489-2832


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VRYWARING                                                                                         

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