Matplotlib Quiz: Testing Your Knowledge of Basic Plotting in Python

📚 Quick Study Guide

• 📈 Basic Plotting: Matplotlib is a Python library for creating static, interactive, and animated visualizations.
• 🎨 Pyplot Module: `matplotlib.pyplot` is a collection of functions that make Matplotlib work like MATLAB.
• 📏 Creating a Figure and Axes:
  • `fig = plt.figure()` creates a new figure.
  • `ax = fig.add_subplot()` adds an axes to the figure.
• 🖋️ Plotting Data: `ax.plot(x, y)` plots data on the axes.
• 🏷️ Labels and Titles:
  • `ax.set_xlabel('X-axis label')` sets the x-axis label.
  • `ax.set_ylabel('Y-axis label')` sets the y-axis label.
  • `ax.set_title('Plot Title')` sets the plot title.
• ➕ Adding Legends: `ax.legend()` adds a legend to the plot.
• 💾 Saving Plots: `plt.savefig('filename.png')` saves the plot to a file.
• 🌈 Common Plot Types:
  • Line plots: `plt.plot(x, y)`
  • Scatter plots: `plt.scatter(x, y)`
  • Bar plots: `plt.bar(x, height)`
  • Histograms: `plt.hist(x)`

🧪 Practice Quiz

1. What is the primary purpose of the Matplotlib library in Python?
   1. A. To perform complex mathematical calculations.
   2. B. To create visualizations and plots.
   3. C. To manage and manipulate data.
   4. D. To build web applications.
2. Which module in Matplotlib provides a MATLAB-like interface for plotting?
   1. A. `matplotlib.mlab`
   2. B. `matplotlib.pyplot`
   3. C. `matplotlib.pylab`
   4. D. `matplotlib.plot`
3. Which function is used to create a new figure in Matplotlib?
   1. A. `plt.axes()`
   2. B. `plt.plot()`
   3. C. `plt.figure()`
   4. D. `plt.subplot()`
4. How do you add a title to a plot using Matplotlib?
   1. A. `ax.add_title('Title')`
   2. B. `plt.title('Title')`
   3. C. `ax.set_title('Title')`
   4. D. `fig.title('Title')`
5. Which function is used to save a Matplotlib plot to a file?
   1. A. `plt.export('file.png')`
   2. B. `plt.savefig('file.png')`
   3. C. `ax.save('file.png')`
   4. D. `fig.savefig('file.png')`
6. What type of plot is best suited for visualizing the relationship between two continuous variables?
   1. A. Bar plot
   2. B. Histogram
   3. C. Scatter plot
   4. D. Pie chart
7. Which function is used to add a label to the y-axis?
   1. A. `ax.label_y('Label')`
   2. B. `ax.set_ylabel('Label')`
   3. C. `plt.ylabel('Label')`
   4. D. `fig.ylabel('Label')`