在Numpy中計算陣列與另一個數組逐元素的邏輯或


要在Python Numpy中計算陣列與另一個數組逐元素的邏輯或,可以使用**numpy.logical_or()**方法。返回值為True或False。返回值是應用於x1和x2元素的邏輯或運算的布林結果;形狀由廣播確定。如果x1和x2都是標量,則這是一個標量。

out是結果儲存到的位置。如果提供,它必須具有輸入廣播到的形狀。如果沒有提供或為None,則返回一個新分配的陣列。元組(只能作為關鍵字引數)的長度必須等於輸出的數量。

步驟

首先,匯入所需的庫:

import numpy as np

使用array()方法建立兩個二維numpy陣列。我們已插入元素:

arr1 = np.array([[True, False, False], [False, True, True]])
arr2 = np.array([[True, False, True], [True, True, False]])

顯示陣列:

print("Array 1...
", arr1) print("
Array 2...
", arr2)

獲取陣列的型別:

print("
Our Array 1 type...
", arr1.dtype) print("
Our Array 2 type...
", arr2.dtype)

獲取陣列的維度:

print("
Our Array 1 Dimensions...
",arr1.ndim) print("
Our Array 2 Dimensions...
",arr2.ndim)

獲取陣列的形狀:

print("
Our Array 1 Shape...
",arr1.shape) print("
Our Array 2 Shape...
",arr2.shape)

要計算陣列與另一個數組逐元素的邏輯或,可以使用numpy.logical_or()方法。返回值為True或False:

print("
Result (OR)...
",np.logical_or(arr1, arr2))

示例

import numpy as np

# Creating two 2D numpy array using the array() method
# We have inserted elements
arr1 = np.array([[True, False, False], [False, True, True]])
arr2 = np.array([[True, False, True], [True, True, False]])

# Display the arrays
print("Array 1...
", arr1) print("
Array 2...
", arr2) # Get the type of the arrays print("
Our Array 1 type...
", arr1.dtype) print("
Our Array 2 type...
", arr2.dtype) # Get the dimensions of the Arrays print("
Our Array 1 Dimensions...
",arr1.ndim) print("
Our Array 2 Dimensions...
",arr2.ndim) # Get the shape of the Arrays print("
Our Array 1 Shape...
",arr1.shape) print("
Our Array 2 Shape...
",arr2.shape) # To compute the truth value of an array OR another array elementwise, use the numpy.logical_or() method in Python Numpy # Return value is either True or False print("
Result (OR)...
",np.logical_or(arr1, arr2))

輸出

Array 1...
[[ True False False]
[False True True]]

Array 2...
[[ True False True]
[ True True False]]

Our Array 1 type...
bool

Our Array 2 type...
bool

Our Array 1 Dimensions...
2

Our Array 2 Dimensions...
2

Our Array 1 Shape...
(2, 3)

Our Array 2 Shape...
(2, 3)

Result (OR)...
[[ True False True]
[ True True True]]

更新於:2022年2月8日

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