Python |将 2d numpy 数组展平为 1d 数组
原文:https://www . geesforgeks . org/python-flat-a-2d-numpy-array-in-1d-array/
给定 2d numpy 数组，任务是将 2d numpy 数组展平为 1d 数组。下面是几个解决任务的方法。
方法#1:使用 NP . flat()
# Python code to demonstrate
# flattening a 2d numpy array
# into 1d array
import numpy as np
ini_array1 = np.array([[1, 2, 3], [2, 4, 5], [1, 2, 3]])
# printing initial arrays
print("initial array", str(ini_array1))
# Multiplying arrays
result = ini_array1.flatten()
# printing result
print("New resulting array: ", result)
输出:
initial array [[1 2 3]
[2 4 5]
[1 2 3]]
New resulting array: [1 2 3 2 4 5 1 2 3]
