public void CalculateValue(DataInstance dataInstance)
{
// no recalculation for the x0 node
if (IsThresholdUnit)
{
LogHelper.WriteDebug("Skipping Calculate() for threshold input: {0} [value:{1}]", _label, _value);
return;
}
// value of an input node is simply the attribute value from the data instance
_value = dataInstance.Attributes[Index - 1];
LogHelper.WriteDebug("Calculate() for input: {0}; value: {1}", _label, _value);
}
public void CalculateError(DataInstance dataInstance)
{
_error = _value * (1.0 - _value) * (dataInstance.Class - _value);
LogHelper.WriteDebug("CalculateError() for output: {0}; value: {1}", _label, _error);
}
