[R] kernlab | ksvm error

[Uwe Ligges]

On 26.08.2012 15:33, Reza Salimi-Khorshidi wrote:
> Thanks Uwe,
> Am I right that in ksvm's internal cross-validation, there is no
> guarantee for having *at least one* of each classes in each subset?


That is my guess, but I haven't read the code. Please read it yourself 
in case you want more details - or ask the author of tht function.

Best,
Uwe Ligges


>
>     Some randomness is involved, and when you get an unfortunate
>     subsample (e.g. if in the internal cross-validation one class is not
>     selected at all) it won't work anymore.
>