熊猫系列中最常出现的数值如何显示？
在本文中，我们的基本任务是打印系列中最频繁出现的值。我们可以使用 value_counts() 方法找到元素出现的次数。通过使用模式()方法可以访问最频繁的元素。
例 1 :
# importing the module
import pandas as pd
# creating the series
series = pd.Series(['g', 'e', 'e', 'k', 's',
'f', 'o', 'r',
'g', 'e', 'e', 'k', 's'])
print("Printing the Original Series:")
display(series)
# counting the frequency of each element
freq = series.value_counts()
print("Printing the frequency")
display(freq)
# printing the most frequent element
print("Printing the most frequent element of series")
display(series.mode());
输出:
例 2 : 将除最频繁元素外的所有元素替换为无。
# importing the module
import pandas as pd
# creating the series
series = pd.Series(['g', 'e', 'e', 'k', 's',
'f', 'o', 'r',
'g', 'e', 'e', 'k', 's'])
# counting the frequency of each element
freq = series.value_counts()
# replacing everything else as Other
series[~series.isin(freq .index[:1])] = None
print(series)
输出:
