MEAN堆栈的新手，尝试进行API响应，我已正确使用下面的res.render jade模板。
result is not defined现在我得到了if self.n_splits > n_samples:
raise ValueError(
("Cannot have number of splits n_splits={0} greater"
" than the number of samples: {1}.").format(self.n_splits,
n_samples))