计算熊猫系列每个唯一值的频率计数

原文:https://www.geeksforgeeks.org/计算熊猫每个独特价值的频率计数系列/

让我们看看如何找到熊猫系列的每个唯一值的频率计数。我们将使用 value_counts() 函数来执行此任务。

例 1 :

# importing the module
import pandas as pd

# creating the series
s = pd.Series(data = [2, 3, 4, 5, 5, 6, 
                      7, 8, 9, 5, 3])

# displaying the series
print(s)

# finding the unique count
print(s.value_counts())

输出:

输出:

例 2 :

# importing the module
import pandas as pd

# creating the series
s = pd.Series(np.take(list('0123456789'), 
              np.random.randint(10, size = 40)))

# displaying the series
print(s)

# finding the unique count
s.value_counts()

输出:

输出:

例 3 :

# importing pandas as pd 
import pandas as pd 

# creating the Series 
sr = pd.Series(['Mumbai', 'Pune', 'Agra', 'Pune', 
                'Goa', 'Shimla', 'Goa', 'Pune']) 

# displaying the series 
print(sr) 

# finding the unique count
sr.value_counts()

输出:

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