Добавить имена столбцов в фрейм данных в Pandas
Давайте, как добавить имена в столбцы DataFrame в Pandas.
Creating the DataFrame :
# importing the pandas libraryimport pandas as pd # creating listsl1 =["Amar", "Barsha", "Carlos", "Tanmay", "Misbah"]l2 =["Alpha", "Bravo", "Charlie", "Tango", "Mike"]l3 =[23, 25, 22, 27, 29]l4 =[69, 54, 73, 70, 74] # creating the DataFrameteam = pd.DataFrame(list(zip(l1, l2, l3, l4))) # displaying the DataFrameprint(team) |
Выход :
Здесь мы видим, что столбцы в DataFrame не имеют имени.
Adding column name to the DataFrame : We can add columns to an existing DataFrame using its columns attribute.
# adding column name to the respective columnsteam.columns =["Name", "Code", "Age", "Weight"] # displaying the DataFrameprint(team) |
Выход :
Теперь у DataFrame есть имена столбцов.
Renaming column name of a DataFrame : We can rename the columns of a DataFrame by using the rename() function.
# reanming the DataFrame columnsteam.rename(columns = {"Code":"Code-Name", "Weight":"Weight in kgs"}, inplace = True) # displaying the DataFrameprint(team) |
Output :
We can see the names of the columns have been changed.
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- Python pandas-dataFrame
- Python-pandas
- Python