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python矩阵转换为一维数组的实例

yipeiwu_com5年前 (2020-03-06)Python基础

实例如下所示：

>>>from compiler.ast import flatten

>>>X
matrix([[ 1, 17, 13, 221, 289, 169],
 [ 1, 17, 14, 238, 289, 196],
 [ 1, 17, 15, 255, 289, 225],
 [ 1, 18, 13, 234, 324, 169],
 [ 1, 18, 14, 252, 324, 196],
 [ 1, 18, 15, 270, 324, 225],
 [ 1, 19, 13, 247, 361, 169],
 [ 1, 19, 14, 266, 361, 196],
 [ 1, 19, 15, 285, 361, 225]])
>>>x = X.tolist()
>>>x
[[ 1, 17, 13, 221, 289, 169],
 [ 1, 17, 14, 238, 289, 196],
 [ 1, 17, 15, 255, 289, 225],
 [ 1, 18, 13, 234, 324, 169],
 [ 1, 18, 14, 252, 324, 196],
 [ 1, 18, 15, 270, 324, 225],
 [ 1, 19, 13, 247, 361, 169],
 [ 1, 19, 14, 266, 361, 196],
 [ 1, 19, 15, 285, 361, 225]]
>>>xx = flatten(x)
>>>xx
[1,
 17,
 13,
 221,
 289,
 169,
 1,
 17,
 14,
 238,
 289,
 196,
 1,
 17,
 15,
 255,
 289,
 225,
 1,
 18,
 13,
 234,
 324,
 169,
 1,
 18,
 14,
 252,
 324,
 196,
 1,
 18,
 15,
 270,
 324,
 225,
 1,
 19,
 13,
 247,
 361,
 169,
 1,
 19,
 14,
 266,
 361,
 196,
 1,
 19,
 15,
 285,
 361,
 225]

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