classifier_utils.py 文件源码

def threshold_from_data(self, X, y):
        y_bool = y == 1.   ## true if x is a catast
        y_pred = self.predict_proba(X) 
        if np.count_nonzero(y) == 0:
            return np.max(y_pred)
        return np.min(y_pred[y_bool][:,1])   # TODO CHANGED FROM WILL CODE