Get last n records of a Pandas DataFrame
Let’s discuss how to get last n records of a Pandas DAtaframe. There can be various methods to get the last n records of a Pandas DataFrame. Lets first make a dataframe:
Example:
Python3
# Import Required Librariesimport pandas as pdimport numpy as np # Create a dictionary for the dataframedict = {'Name': ['Sukritin', 'Sumit Tyagi', 'Akriti Goel', 'Sanskriti', 'Abhishek Jain'], 'Age': [22, 20, np.inf, -np.inf, 22], 'Marks': [90, 84, 33, 87, 82]} # Converting Dictionary to Pandas Dataframedf = pd.DataFrame(dict) # Print Dataframedf |
Output:
Method 1: Using tail() method
Use pandas.DataFrame.tail(n) to get the last n rows of the DataFrame. It takes one optional argument n (number of rows you want to get from the end). By default n = 5, it return the last 5 rows if the value of n is not passed to the method.
Syntax:
df.tail(n)
Example:
Python3
# Getting last 3 rows from dfdf_last_3 = df.tail(3) # Printing df_last_3print(df_last_3) |
Output:
Method 2: Using pandas.DataFrame.iloc
Use pandas.DataFrame.iloc to get last n rows. It is similar to the list slicing.
Syntax:
df.iloc[-n:]
Example:
Python3
# Getting last 3 rows from dfdf_last_3 = df.iloc[-3:] # Printing df_last_3print(df_last_3) |
Output:
Method 3: Display last n records of specific columns
Display last n records for the specific column
Python3
# Getting last 2 rows of columns # Age and Marks from dfdf_last_2 = df[['Age', 'Marks']].tail(2) # Printing df_last_2print(df_last_2) |
Output:
Method 4: Display last n records from last n columns
Display last n records for the last n columns using pandas.DataFrame.iloc
Python3
# Getting last n rows and last n columns from dfdf_last_2_row_col = df.iloc[-2:,-2:] # Printing df_last_2print(df_last_2_row_col) |
Output:
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