Python中的 numpy.minimum()
numpy.minimum()
函数用于查找数组元素的元素最小值。
它比较两个数组并返回一个包含元素最小值的新数组。如果要比较的元素之一是 NaN,则返回该元素。如果两个元素都是 NaN,则返回第一个。
Syntax : numpy.minimum(arr1, arr2, /, out=None, *, where=True, casting=’same_kind’, order=’K’, dtype=None, ufunc ‘minimum’)
Parameters :
arr1 : [array_like] Input array.
arr2 : [array_like] Input array.
out : [ndarray, optional] A location into which the result is stored.
-> If provided, it must have a shape that the inputs broadcast to.
-> If not provided or None, a freshly-allocated array is returned.
**kwargs : allows you to pass keyword variable length of argument to a function. It is used when we want to handle named argument in a function.
where : [array_like, optional]True value means to calculate the universal functions(ufunc) at that position, False value means to leave the value in the output alone.
Return : [ndarray or scalar] Result.
The minimum of arr1 and arr2, element-wise. This is a scalar if both arr1 and arr2 are scalars.
代码#1:工作
# Python program explaining
# minimum() function
import numpy as geek
in_num1 = 10
in_num2 = 21
print ("Input number1 : ", in_num1)
print ("Input number2 : ", in_num2)
out_num = geek.minimum(in_num1, in_num2)
print ("minimum of 10 and 21 : ", out_num)
输出 :
Input number1 : 10
Input number2 : 21
minimum of 10 and 21 : 10
代码#2:
# Python program explaining
# minimum() function
import numpy as geek
in_arr1 = [2, 8, 125]
in_arr2 = [3, 3, 15]
print ("Input array1 : ", in_arr1)
print ("Input array2 : ", in_arr2)
out_arr = geek.minimum(in_arr1, in_arr2)
print ("Output array after selecting minimum: ", out_arr)
输出 :
Input array1 : [2, 8, 125]
Input array2 : [3, 3, 15]
Output array after selecting minimum: [ 2 3 15]
代码#3:
# Python program explaining
# minimum() function
import numpy as geek
in_arr1 = [geek.nan, 0, geek.nan]
in_arr2 = [geek.nan, geek.nan, 0]
print ("Input array1 : ", in_arr1)
print ("Input array2 : ", in_arr2)
out_arr = geek.minimum(in_arr1, in_arr2)
print ("Output array after selecting minimum: ", out_arr)
输出 :
Input array1 : [nan, 0, nan]
Input array2 : [nan, nan, 0]
Output array after selecting minimum: [ nan nan nan]