Indexes and Columns
You can change DataFrame' indexes likewise Series' indexes (by assigning necessary list to the .index attribute of DataFrame).
12345678# Importing library import pandas as pd # Creating DataFrame df = pd.DataFrame([[1, 2], [3, 4], [5, 6]]) # Set indexes df.index = ['first', 'second', 'third'] print(df)
You can set indexes when defining the DataFrame by specifying the index parameter. For instance,
123456# Importing library import pandas as pd # Creating DataFrame with indexes df = pd.DataFrame([[1, 2], [3, 4], [5, 6]], index = ['first', 'second', 'third']) print(df)
Also there are two ways to set the columns names: by assigning list of names to the columns attribute, or specifying the columns parameter.
12345678910# Importing library import pandas as pd # Creating DataFrame with indexes df = pd.DataFrame([[1, 2], [3, 4], [5, 6]], columns = ['col1', 'col2'], index = ['first', 'second', 'third']) print(df) # Changing columns' names df.columns = ['Column1', 'Column2'] print(df)
If you need to change columns' names or indexes of existing dataframe, use the approach with reassigning (
.index,.columnsattributes).
Дякуємо за ваш відгук!
Запитати АІ
Запитати АІ
Запитайте про що завгодно або спробуйте одне із запропонованих запитань, щоб почати наш чат
Запитайте мені питання про цей предмет
Сумаризуйте цей розділ
Покажіть реальні приклади
Awesome!
Completion rate improved to 3.33Indexes and Columns
Свайпніть щоб показати меню
You can change DataFrame' indexes likewise Series' indexes (by assigning necessary list to the .index attribute of DataFrame).
12345678# Importing library import pandas as pd # Creating DataFrame df = pd.DataFrame([[1, 2], [3, 4], [5, 6]]) # Set indexes df.index = ['first', 'second', 'third'] print(df)
You can set indexes when defining the DataFrame by specifying the index parameter. For instance,
123456# Importing library import pandas as pd # Creating DataFrame with indexes df = pd.DataFrame([[1, 2], [3, 4], [5, 6]], index = ['first', 'second', 'third']) print(df)
Also there are two ways to set the columns names: by assigning list of names to the columns attribute, or specifying the columns parameter.
12345678910# Importing library import pandas as pd # Creating DataFrame with indexes df = pd.DataFrame([[1, 2], [3, 4], [5, 6]], columns = ['col1', 'col2'], index = ['first', 'second', 'third']) print(df) # Changing columns' names df.columns = ['Column1', 'Column2'] print(df)
If you need to change columns' names or indexes of existing dataframe, use the approach with reassigning (
.index,.columnsattributes).
Дякуємо за ваш відгук!
