getting _G440 instead of wanted answer

[Loic2000]

hello, I'm making a program that is supposed to imitate a simple neurone. The idea is that after it has calculated the net input, it decides if the neurone will be activated or not, if the activation level is greater than 0 then it will, otherwise it will not be activated. I think it might be working OK, but it gives me the wrong type of answer, it's giving a number like _G440 instead. Here it is:

neuron([],[],Bias,Bias).
neuron([Input|InputTail],[Weight|WeightTail],Bias,Result):-
neuron(InputTail,WeightTail,Bias,Temp);
Temp2 is Temp + Input*Weight,
Temp2 > 0 -> Result = 1; Temp2 =< 0 -> Result = 0.

Where have I gone wrong? I'm new to this, so please forgive me if I've done something really dumb. Thanks for your time.

 

[baile]

Um....even though the activation fuction is kind of odd...and you didn't seem do use the variable 'bias', here is a possible solution ....

neuron([Input|InputTail],[Weight|WeightTail],Result):-neuron([Input|InputTail],[Weight|WeightTail],Result,0).
neuron([Input|InputTail],[Weight|WeightTail], Result, Temp):-
Temp2 is Temp + Input*Weight, neuron(InputTail,WeightTail,Result,Temp2).
neuron([],[], Result,Temp):-(Temp > 0 -> Result = 1; Temp =< 0 -> Result = 0).

?- neuron([1,2],[0.2,0.9], Result).

Result = 1

Yes
?- neuron([1,2],[0.2,-0.9], Result).

Result = 0 ;

No