Data Science Basic | Data Visualization by Diljeet Singh | Learn Smarter
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Data Visualization

Data visualization is crucial for transforming data into meaningful insights, utilizing various Python libraries such as Matplotlib, Seaborn, and Plotly. The chapter covers different types of visualizations, their appropriate contexts, and best practices for clarity and effectiveness. By applying these techniques, learners can effectively communicate complex information and trends to diverse audiences.

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Sections

  • 1

    Why Data Visualization Matters

    Data visualization is essential for simplifying complex data and making insights accessible to a broader audience.

  • 2

    Visualization With Matplotlib

    This section introduces the creation of basic visualizations using Matplotlib, focusing on line charts and bar charts as fundamental ways to represent data.

  • 2.1

    Line Chart

    The Line Chart section introduces the concept of creating basic line plots using the Matplotlib library in Python, focusing on visualizing trends over time.

  • 2.2

    Bar Chart

    In this section, you'll learn how to create and utilize bar charts using Matplotlib for comparing categorical data.

  • 3

    Visualization With Seaborn

    Seaborn enhances data visualization capabilities in Python, enabling users to create more aesthetically pleasing graphics and advanced statistical plots easily.

  • 3.1

    Histogram

    Histograms are used to visualize the distribution of numerical data by dividing it into bins and showing the frequency of data points in each bin.

  • 3.2

    Box Plot

    Box plots are visual representations that display the distribution of data based on a five-number summary, highlighting medians and outliers.

  • 3.3

    Count Plot (For Categorical Data)

    The count plot is a fundamental tool in Seaborn for visualizing the frequency of categorical data.

  • 3.4

    Heatmap (Correlation Matrix)

    The heatmap (correlation matrix) visualizes the correlation between multiple variables in a dataset, allowing for quick identification of relationships.

  • 4

    Interactive Charts With Plotly

    This section highlights how to create interactive charts using Plotly, emphasizing its features like zoom, hover information, and export options.

  • 4.1

    Line Chart

    The section provides an overview of creating line charts using Python's Matplotlib library, focusing on visualizing trends over time.

  • 4.2

    Scatter Plot

    This section covers scatter plots, a tool for analyzing the relationship between two numeric variables.

  • 5

    Best Practices For Data Visualization

    This section presents important principles for creating effective data visualizations.

  • 6

    Chapter Summary

    This chapter summary encapsulates the importance of data visualization and the key techniques utilized, primarily focusing on tools like Matplotlib, Seaborn, and Plotly.

Class Notes

Memorization

What we have learnt

  • Data visualization simplifi...
  • Matplotlib is suitable for ...
  • Plotly enables interactive ...

Revision Tests