Let's start with

quick Revision

>>>>>>

we are done with:

Creating a pandas data structure

one -Dimensional data structure

two-Dimensional data structure

Our Objectives:

1- Accessing elements in a data structure.

2- Updating elements in a DataFrame.

3- Sub-setting a DataFrame.

​The loc( ) function name stands for location. To locate or access an element in a DataFrame, the location should be known. The location of an element in a DataFrame is the index values of the row and column.

​for example if you want to print the grades of Aesha in CS you will write >>

print ( grades.loc[1,2])

​