[R] nnet

[Prof Brian Ripley]

On Thu, 21 Feb 2008, Luís Paulo F. Garcia wrote:

> In nnet.formula(classe ~ ., data = treinamento_data, size = 10,  : group
> Class is empty
>
> What does this mean?

Well, you are the best placed to tell us as we don't have a reproducible 
example (see the footer) and you do.

But at a guess, 'classe' is a factor with a level 'Class' which has no 
examples (because that is what the message says).

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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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