MLJourney
Day 2
Week 1

Python for Data Science

Overview

Python has become the de facto language for data science and machine learning due to its simplicity and the rich ecosystem of libraries.

Today, we'll focus on essential Python libraries for data manipulation and analysis: NumPy, Pandas, and Matplotlib.

Key Concepts
  • NumPy arrays and operations
  • Pandas DataFrames and Series
  • Data loading and manipulation with Pandas
  • Basic data visualization with Matplotlib
  • Jupyter notebooks for interactive development
Practice Exercise

Exercise: Data Exploration with Pandas

Using the Titanic dataset:

  1. Load the dataset using Pandas
  2. Display basic information about the dataset (shape, data types, etc.)
  3. Calculate summary statistics for numerical columns
  4. Find the survival rate by gender
  5. Create a simple visualization showing age distribution of passengers
Resources

Kaggle Python Course

Main resource for today

Python Data Science Handbook

Comprehensive guide to Python for data science

Pandas Documentation

Official documentation for Pandas

NumPy Tutorial

W3Schools NumPy Tutorial

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