learn-python/contrib/pandas/viewing-data.md

Viewing rows of the frame

head() method

The pandas library in Python provides a convenient method called head() that allows you to view the first few rows of a DataFrame. Let me explain how it works:

• The head() function returns the first n rows of a DataFrame or Series.
• By default, it displays the first 5 rows, but you can specify a different number of rows using the n parameter.

Syntax

dataframe.head(n)

n is the Optional value. The number of rows to return. Default value is 5.

Example

import pandas as pd
df = pd.DataFrame({'animal': ['alligator', 'bee', 'falcon', 'lion','tiger','rabit','dog','fox','monkey','elephant']})
df.head(n=5)

Output

      animal
0  alligator
1        bee
2     falcon
3       lion
4      tiger

tail() method

The tail() function in Python displays the last five rows of the dataframe by default. It takes in a single parameter: the number of rows. We can use this parameter to display the number of rows of our choice.

• The tail() function returns the last n rows of a DataFrame or Series.
• By default, it displays the last 5 rows, but you can specify a different number of rows using the n parameter.

Syntax

dataframe.tail(n)

n is the Optional value. The number of rows to return. Default value is 5.

Example

import pandas as pd
df = pd.DataFrame({'fruits': ['mongo', 'orange', 'apple', 'lemon','banana','water melon','papaya','grapes','cherry','coconut']})
df.tail(n=5)

Output

        fruits
5  water melon
6       papaya
7       grapes
8       cherry
9      coconut