Can I use ~A to invert a numpy array of booleans, instead of the rather awkward functions np.logical_and() and np.invert()? Indeed, ~ seems to work fine, but I can't find it in any nympy reference manual, and - more alarmingly - it certainly does not work with scalars (e.g. bool(~True) returns True !), so I'm a little bit worried ...
我可以用~A来反转一个numpy数组的布尔值，而不是相当笨拙的函数np.logical_and（）和np.invert（）吗？确实，〜似乎工作得很好，但我在任何nympy参考手册中找不到它，而且 - 更令人担忧的是 - 它肯定不适用于标量（例如bool（~True）返回True！），所以我是一个有点担心......
1 个解决方案
#1
22
short answer: YES
简答：是的
Ref:
参考：
http://docs.scipy.org/doc/numpy/reference/generated/numpy.invert.html
http://docs.scipy.org/doc/numpy/reference/generated/numpy.invert.html
Notice:
注意：
Computes the bit-wise NOT of the underlying binary representation of the integers in the input arrays. This ufunc implements the C/Python operator ~.
计算输入数组中整数的基础二进制表示的逐位NOT。这个ufunc实现了C / Python操作符〜。
and
和
bitwise_not is an alias for invert:
bitwise_not是invert的别名：
>> np.bitwise_not is np.invert
>> True
#1
22
short answer: YES
简答：是的
Ref:
参考：
http://docs.scipy.org/doc/numpy/reference/generated/numpy.invert.html
http://docs.scipy.org/doc/numpy/reference/generated/numpy.invert.html
Notice:
注意：
Computes the bit-wise NOT of the underlying binary representation of the integers in the input arrays. This ufunc implements the C/Python operator ~.
计算输入数组中整数的基础二进制表示的逐位NOT。这个ufunc实现了C / Python操作符〜。
and
和
bitwise_not is an alias for invert:
bitwise_not是invert的别名：
>> np.bitwise_not is np.invert
>> True