Custom function for a ANN

Hello,

i seem to have trouble assigning my custom function to the "divideFcn" of a network.

My function is part of a class and is defined as a static method.

i try to assign it like this:

obj.Net.divideFcn = 'Odds_Data.Divide';

but i get the error:

"divideFcn" cannot be set to non-existing function "Odds_Data.Divide".

Is there any limitation on using methods of classes as custom functions?

thank you