[R] Re: R library(e1071) question: definition of performance in tune.* functions

[David Meyer]

Tae-Hoon:

> When we run tune.* for parameter tuning, we get performance value.
> Can you tell me what the definition of it is?

The values returned by tune() are Mean Squared Errors in case of
regression, and simple rates (*no* percentages) in case of
classification. As Andy already suggested, you might want to check if
your target variable is indeed a factor. In case it is and you still get
values greater than 1, drop me a mail with a piece of code (and data)
enabling me to reproduce the phenomenon. 

Best,
David

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Dr. David Meyer
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