Python示例：寻找数组中的最小值和最大值

Python 示例

编写一个 Python示例来查找数组中的最小值和最大值。numpy 模块具有最小值和最大值功能，用于返回 numpy 数组中的最小值和最大值。我们使用这些 numpy min 和 max 函数来返回数字和字符串数组中的最小值和最大值。

# Smallest and Largest Array Item

import numpy as np

smtlgtarr = np.array([14, 120, 50, 11, 65, 99, 920,8, 195, 120])
print("Numeric Numpy Array Items = ", smtlgtarr)
print("The Smallest Number in this Numpy Array = ", min(smtlgtarr))
print("The Largest Number in this Numpy Array  = ", max(smtlgtarr))

strsmtlgtarr = np.array(['UK', 'Brazil', 'USA','India', 'Japan'])
print("String Numpy Array Items = ", strsmtlgtarr)
print("The Smallest Number in this Numpy Array = ", min(strsmtlgtarr))
print("The Largest Number in this Numpy Array  = ", max(strsmtlgtarr))

寻找数组中的最小值和最大值的 Python示例

我们使用 numpy 排序函数对 numpy 数组进行升序排序。接下来，我们在第一个和最后一个索引位置打印数字，这是最小和最大数组值。

# Largest and Smallest Array Item

import numpy as np

smtlgtarr = np.array([99, 120, 50, 9, 428, 16, 190])
print("Numpy Array Items = ", smtlgtarr)

smtlgtarr.sort()
lgtlength = len(smtlgtarr) - 1

print("The Smallest Number in smtlgtarr Numpy Array = ", smtlgtarr[0])
print("The Largest Number in smtlgtarr Numpy Array = ", smtlgtarr[lgtlength])

Python Numpy 数组最小值和最大值输出

Numpy Array Items =  [ 99 120  50   9 428  16 190]
The Smallest Number in smtlgtarr Numpy Array =  9
The Largest Number in smtlgtarr Numpy Array =  428

在这个 Python 示例中，我们将第一个值分配给最小和最大的变量。if 条件(if(最大的< smtlgtarr[I])检查当前 numpy 数组项是否小于最大值。如果为真，则将该值赋给最大的变量(最大= smtlgtarr[I])，将索引值赋给 larposition (larposition = i)变量。下一个 if 条件(if(最小> smtlgtarr[I])检查项目小于最小。如果为真，(minist = smtlgtarr[I])更改最小值并分配该(smtposition = i)索引位置。

# Smallest Array Item

import numpy as np

smtlgtarr = np.array([99, 120, 625, 150, 9, 428, 716, 190])
print("Numpy Array Items = ", smtlgtarr)

smallest = smtlgtarr[0]
largest = smtlgtarr[0]

for i in range(1, len(smtlgtarr) - 1) :
    if(largest < smtlgtarr[i]) :
        largest = smtlgtarr[i]
        larposition = i
    if(smallest > smtlgtarr[i]) :
        smallest = smtlgtarr[i]
        smtposition = i

print("The Smallest Number in this Numpy Array   = ", smallest)
print("The Index Position of the Smallest Number = ", smtposition)
print("The Largest Number in this Numpy Array    = ", largest)
print("The Index Position of the Largest Number  = ", larposition)

Python Numpy 数组最大值和最小值输出

Numpy Array Items =  [ 99 120 625 150   9 428 716 190]
The Smallest Number in this Numpy Array   =  9
The Index Position of the Smallest Number =  4
The Largest Number in this Numpy Array    =  716
The Index Position of the Largest Number  =  6