[R-SIG-Finance] understanding an error from ugarchfit

[tvernay]

Thanks a lot for your help Alexios, the previously mentioned error has
disappeared! 
Now I have the same question regarding another error which I experienced and
which I do not understand:

Error in ans$res : $ operator is invalid for atomic vectors

Is it also related to model convergence failure? Is there any input
parameter in ugarchfit that could prevent this error from occuring?



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