我在plot函数调用中遇到的主要错误：
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()
回溯上下文：
Traceback (most recent call last):
File "<ipython-input-5-10061f33ba63>", line 16, in <module>
plt.show(ix_train)
File "/home/.local/lib/python2.7/site-packages/matplotlib/pyplot.py", line 253, in show
return _show(*args, **kw)
File "/usr/lib/python2.7/dist-packages/ipykernel/pylab/backend_inline.py", line 41, in show
if close and Gcf.get_all_fig_managers():
答案 0 :(得分：1)
您为static navigationOptions = ({navigation}) => ({
headerRight: (
<Button
...
navigation.navigate("Login");
>
Log out
</Button>
)
})
，show提供了一个参数。这不是应该使用plt.show(something)的方式。
相反，您想绘制一些东西，然后显示以前创建的图，
show