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Python numpy 数组基本操作（索引与切片用法、改变形状、修改类型、去重）

2023-7-14 myluzh Python

0x01 数组索引与切片用法 import numpy as np # (2)二维数组 # 首先生成一个二维数组 arr2 = np.random.uniform(-1, 2, size=(5, 5)) """ # 查看下arr2 arr2 Out[3]: array([[ 1.05865188, 1.18597622, -0.81279676, 1.79444952, 0.71910054], [-0.62385763, -0.61713265, 0.94918552, -0.24394799, 1.81343914], [-0.71354709, -0.93964984, 0.96237785, 1.23973639, 0.11628672], [ 0.02623292, 1.68481857, -0.79207649, 0.79625302, -0.32104851], [ 0.75240426, 0.15582726, -0.87529045, -0.28858853, 0.01173709]]) # 只要...

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