Class 12 Computer Science — Chapter 4: Plotting Data using Matplotlib

What you'll learn

• ▸Introduction to Data Visualization with Matplotlib
• ▸Setting Up the Matplotlib Environment
• ▸Fundamental Plotting with plot() and show()
• ▸Components of a Plot
• ▸Adding Labels, Title, and Grid
• ▸Customizing Line Appearance: Color, Width, and Style
• ▸Using Markers to Highlight Data Points
• ▸Overview of Different Chart Types
• ▸Saving a Plot to a File

Chapter Summary

--- PAGE 1 --- Chapter 4 Plotting Data using Matplotlib “Human visual perception is the “most powerful of data interfaces between computers and Humans” — M. McIntyre 12149CH04 In this chapter » Introduction » Plotting using Matplotlib » Customisation of Plots » The Pandas Plot Function (Pandas Visualisation) 4.1 INTRODUCTION We have learned how to organise and analyse data and perform various statistical operations on Pandas DataFrames. Likewise, in Class XI, we have learned how to analyse numerical data using NumPy. The results obtained after analysis is used to make inferences or draw conclusions about data as well as to make important business decisions. Sometimes, it is not easy to infer by merely looking at the results. In such cases, visualisation helps in better understanding of results of the analysis. Data visualisation means graphical or pictorial representation of the data using graph, chart, etc. The purpose of plotting data is to visualise variation or show relationshi…

Practice Questions from this Chapter

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1. Show me different chart types? Get Solution →
2. Create a simple line plot? Get Solution →
3. Explain data visualization basics? Get Solution →
4. What is the name of the library used for creating static, animated, and interactive 2D plots in Python as mentioned in the chapter? Get Solution →
5. Which `pip` command is used to install the Matplotlib library? Get Solution →
6. What is the common alias used for `matplotlib.pyplot` when importing it? Get Solution →
7. Which function from the pyplot module is used to display the figure after plotting? Get Solution →
8. What is the default type of chart created by the `plt.plot()` function? Get Solution →

Did you know?

• 💡 Ancient Egyptians used early maps and diagrams to manage their lands.
• 💡 The Python programming language is named after a British comedy TV show.
• 💡 Every spiderweb is a unique, natural data visualization of the spider's engineering.
• 💡 The very first computer programmer was a woman named Ada Lovelace in the 1800s.
• 💡 Matplotlib was designed to make Python plots look like graphs from the MATLAB program.

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