我有一个二维数组,我希望i每一行中的数组元素i-1被同一行中的元素减少
我试过这个代码:
data = np.arange(12).reshape(3,4)
print(data)
for row in data:
for cell in row:
data[cell] = data[cell]-data[cell-1]
print(data)
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我得到了这样的输出
[[ 0 1 2 3]
[ 4 5 6 7]
[ 8 9 10 11]]
Traceback (most recent call last):
File "D:/testing/test.py", line 55, in <module>
data[cell] = data[cell]-data[cell-1]
IndexError: index -8 is out of bounds for axis 0 with size 3
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我想要这样的输出
[[ 0 1 2 3]
[ 4 5 6 7]
[ 8 9 10 …Run Code Online (Sandbox Code Playgroud)