Lecture

Introduction to Pandas and DataFrames

Pandas is one of the most powerful Python libraries for working with data.

It helps you organize, clean, and explore information in a format similar to Excel or Google Sheets, but with the full power of Python.

Instead of writing loops or complex logic, you can manipulate data with simple, readable commands.

The two main structures you'll use in Pandas are:

  • Series: a one-dimensional list with labels
  • DataFrame: a two-dimensional table, similar to a spreadsheet

DataFrame

The DataFrame is the most important structure in Pandas. It's a table with rows and columns.

Below is an example of creating a simple DataFrame from a dictionary.

Preview: Creating a Simple DataFrame
import pandas as pd # Create a small DataFrame from a dictionary data = { "Name": ["Alice", "Bob", "Charlie"], "Age": [25, 30, 22] } df = pd.DataFrame(data) print(df) # Output: # Name Age # 0 Alice 25 # 1 Bob 30 # 2 Charlie 22

Series

Quiz
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What is one of the main tools used in Pandas for handling two-dimensional data?

In Pandas, a is used to represent data in a two-dimensional table format.
Series
DataFrame
Dictionary
Array

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