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python如何实现多维数组转向量 python实现多维数组转向量实例
时间:2019-11-30 编辑:袖梨 来源:一聚教程网
本篇文章小编给大家分享一下python实现多维数组转向量实例,小编觉得挺不错的,现在分享给大家供大家参考,有需要的小伙伴们可以来看看。
代码如下所示:
>>>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) (或者x.ravel() ) >>>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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