40 print('计算单一列的均值',df['key2'].mean())
41 '''
42 计算单一列的均值 3.0
43 '''
44
45 df2 = pd.DataFrame...: [3, 5, 7]
49 }, index=['a', 'b', 'c'])
50 # print(df2)
51 # print('--------df2')
52 # 计算df2每一行的均值并将其结果添加到新的列...()',df.skew())
92 print('求kurt样本的峰度,kurt()',df.kurt())
93 print('df累计求和,cumsum()',df['key2'].cumsum...k
189 4 s
190 dtype: object
191 '''
192 # 对某一列进行值的计数,只能对一列,不能对Dataframe
193 print(df['key2'].value_counts...())
194
195 # 判断Dataframe中的每个元素是否都是在某个列表中
196 print(df)
197 df_isin = df.isin([1,3])
198 print(df_isin