Python中的矩阵转置
我正在尝试为python创建矩阵转置函数,但似乎无法使其工作。说我有
theArray = [['a','b','c'],['d','e','f'],['g','h','i']]
我想提出我的职能
newArray = [['a','d','g'],['b','e','h'],['c', 'f', 'i']]
因此,换句话说,如果我要将此2D数组打印为列和行,我希望将行变成列,将列变成行。
我到目前为止已经做到了,但是没有用
def matrixTranspose(anArray): transposed = [None]*len(anArray[0])
for t in range(len(anArray)):
for tt in range(len(anArray[t])):
transposed[t] = [None]*len(anArray)
transposed[t][tt] = anArray[tt][t]
print transposed
回答:
Python 2:
>>> theArray = [['a','b','c'],['d','e','f'],['g','h','i']]>>> zip(*theArray)
[('a', 'd', 'g'), ('b', 'e', 'h'), ('c', 'f', 'i')]
>>> [*zip(*theArray)][('a', 'd', 'g'), ('b', 'e', 'h'), ('c', 'f', 'i')]
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