df.head() sometimes doesn't work in Pandas, Python

Question

I\'m a beginner in Python and the Pandas library, and I\'m rather confused by some basic functionality of DataFrame. I\'ve got a pandas DataFrame as below:

Answer 1

 DataFrame.head(n=5)

Return the first n rows.

This function returns the first n rows for the object based on position. It is useful for quickly testing if your object has the right type of data in it.

Parameters:

n : int, default 5

Number of rows to select.

Returns:

obj_head : type of caller

The first n rows of the caller object.