Python|计算给定列表中相邻元素之间的差异

给定一个列表，任务是创建一个新列表，其中包含给定列表中相邻元素的差异。

方法 #1：使用zip()

# Python code to demonstrate
# to calculate difference
# between adjacent elements in list
  
  
# initialising _list
ini_list = [5, 4, 89, 12, 32, 45]
  
# printing iniial_list
print("intial_list", str(ini_list))
  
# Calculating difference list
diff_list = []
for x, y in zip(ini_list[0::], ini_list[1::]):
    diff_list.append(y-x)
      
# printing difference list
print ("difference list: ", str(diff_list))
        

输出：

intial_list [5, 4, 89, 12, 32, 45]
difference list:  [-1, 85, -77, 20, 13]

方法#2：使用朴素的方法

# Python code to demonstrate
# to calculate difference
# between adjacent elements in list
  
  
# initialising _list
ini_list = [5, 4, 89, 12, 32, 45]
  
# printing iniial_list
print("intial_list", str(ini_list))
  
# Calculating difference list
diff_list = []
  
for i in range(1, len(ini_list)):
    diff_list.append(ini_list[i] - ini_list[i-1])
  
# printing difference list
print ("difference list: ", str(diff_list))

输出：

intial_list [5, 4, 89, 12, 32, 45]
difference list:  [-1, 85, -77, 20, 13]

方法 #3：使用 numpy

# Python code to demonstrate
# to calculate difference
# between adjacent elements in list
  
import numpy as np
# initialising _list
ini_list = np.array([5, 4, 89, 12, 32, 45])
  
# printing iniial_list
print("intial_list", str(ini_list))
  
# Calculating difference list
diff_list = np.diff(ini_list)
  
# printing difference list
print ("difference list: ", str(diff_list))

输出：

intial_list [ 5  4 89 12 32 45]
difference list:  [ -1  85 -77  20  13]