比较两个NumPy数组,如果第一个数组大于等于第二个数组,则返回True


要比较两个数组,如果第一个数组大于等于第二个数组,则返回True,可以使用Python NumPy中的**numpy.char.greater_equal()**方法。arr1和arr2是两个形状相同的输入字符串数组。

与numpy.greater_equal不同,此比较是在首先去除字符串末尾的空格字符后执行的。此行为是为了与numarray向后兼容。

numpy.char模块为numpy.str_或numpy.bytes_类型的数组提供了一组矢量化字符串操作。

步骤

首先,导入所需的库:

import numpy as np

创建两个一维字符串数组:

arr1 = np.array(['Bella', 'Tom', 'John', 'Kate', 'Amy', 'Brad', 'aaa'])
arr2 = np.array(['Cio', 'Tom', 'Cena', 'Kate', 'Adams', 'brad', 'aa'])

显示数组:

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

获取数组的类型:

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

获取数组的维度:

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

获取数组的形状:

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

要比较两个数组,如果第一个数组大于等于第二个数组,则返回True,可以使用numpy.char.greater_equal()方法。arr1和arr2是两个形状相同的输入字符串数组:

print("
Result...
",np.char.greater_equal(arr1,arr2))

示例

import numpy as np

# Create two One-Dimensional arrays of string
arr1 = np.array(['Bella', 'Tom', 'John', 'Kate', 'Amy', 'Brad', 'aaa'])
arr2 = np.array(['Cio', 'Tom', 'Cena', 'Kate', 'Adams', 'brad', 'aa'])

# 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 compare and return True if an array is greater than equal to another, use the numpy.char.greater_equal() method in Python Numpy # The arr1 and arr2 are the two input string arrays of the same shape. print("
Result...
",np.char.greater_equal(arr1,arr2))

输出

Array 1...
['Bella' 'Tom' 'John' 'Kate' 'Amy' 'Brad' 'aaa']

Array 2...
['Cio' 'Tom' 'Cena' 'Kate' 'Adams' 'brad' 'aa']

Our Array 1 type...
<U5

Our Array 2 type...
<U5

Our Array 1 Dimensions...
1

Our Array 2 Dimensions...
1

Our Array 1 Shape...
(7,)

Our Array 2 Shape...
(7,)

Result...
[False True True True True False True]

更新于:2022年2月18日

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