Pandas 함수

• df.value_counts()

df.value_counts()  # 값의 갯수를 카운트

df['AM or PM'].value_counts()

 

• df.shape

df.shape

• len()

len(df[df['Language']=='en'])

• groupby()

df.groupby('Language')['Purchase Price'].sum().sort_values(ascending=False)

• pivot_table()

pd.pivot_table(df,
              index='CC Provider' ,
              columns='AM or PM' ,
              values='Purchase Price' , 
              aggfunc=np.mean ,
              )

• contains()

df[df['Address'].str.contains('Apt')].groupby('Job').sum()