Numpy argsort-它在做什么? [英] Numpy argsort - what is it doing?

问题描述

为什么numpy给出了这个结果:

Why is numpy giving this result:

x = numpy.array([1.48,1.41,0.0,0.1])
print x.argsort()

>[2 3 1 0]

当我期望它能做到这一点时:

when I'd expect it to do this:

[3 2 0 1]

[3 2 0 1]

很显然，我对该功能缺乏了解.

Clearly my understanding of the function is lacking.

推荐答案

根据

返回将对数组进行排序的索引.

Returns the indices that would sort an array.

• 2是0.0的索引.
• 3是0.1的索引.
• 1是1.41的索引.
• 0是1.48的索引.
• 2 is the index of 0.0.
• 3 is the index of 0.1.
• 1 is the index of 1.41.
• 0 is the index of 1.48.

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