Data structure - data frame 2

chapter 3

Data and analysis

Data structure

Let's start with

quick Revision

>>>>>>

Multiple Choice

in Python to create a DataFrame we need first to ------------

• import pandas Library

• create a list for the data

Multiple Choice

Pandas used to create----

• Data

• DataFrame

• DataFiles

• Array

Multiple Choice

This code is a ---------- dimentional data structure

• one

• Two

Multiple Choice

This code is a ---------- dimentional data structure

• one

• Two

Multiple Choice

--------------is used to access a single element in dataframe by specifying the row and column names.

• index() function

• column() function

• loc( ) function

• type() function

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.

Multiple Choice

What is the index for the element " Eng"

• 0

• 0,1

• 0,0

• 1

Multiple Choice

What is the index for the element " CS"

• 0,2

• 0.2

• 2,0

• 2.0

Multiple Choice

What is the index for the element " 95 "

• 2,1

• 2.1

• 1,2

• 1.2

​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])

Draw

use the drawing tool to write the answers

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