[Solved] Identify the error in this code that tries to highlight and annotate a point:import matplotlib.pyplot as plt x = [1, 2, 3] y = [5, 7, 9] plt.plot(x, y) plt.axhspan(6, 8, color='green') plt.... | Matplotlib

Matplotlib - Real-World Visualization Patterns

Identify the error in this code that tries to highlight and annotate a point:

import matplotlib.pyplot as plt
x = [1, 2, 3]
y = [5, 7, 9]
plt.plot(x, y)
plt.axhspan(6, 8, color='green')
plt.annotate('Important', xy=(2, 7), xytext=(2, 9), arrowprops='->')
plt.show()

Aplt.axhspan should use x values, not y values

Bplt.plot should use scatter instead for annotation

Cxytext coordinates must be inside the plot range

Darrowprops should be a dictionary, not a string

Step-by-Step Solution

Solution:

Step 1: Check plt.axhspan usage
plt.axhspan(6, 8, color='green') is correct to highlight horizontal area between y=6 and y=8.
Step 2: Check plt.annotate arrowprops parameter
arrowprops must be a dictionary describing arrow style, not a string like '->'.
Final Answer:
arrowprops should be a dictionary, not a string -> Option D
Quick Check:
arrowprops = dict(...) not string [OK]

Quick Trick: arrowprops needs dict, not string like '->' [OK]

Common Mistakes:

Passing arrowprops as string instead of dict
Confusing axhspan with axvspan usage
Thinking xytext must be inside plot limits

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More Matplotlib Quizzes

Identify the error in this code that tries to highlight and annotate a point:

Step 1: Check plt.axhspan usage

Step 2: Check plt.annotate arrowprops parameter

Final Answer:

Quick Check:

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