[Solved] Identify the error in this code for creating a 2x2 grid of plots:fig, axes = plt.subplots(2, 2) for i in range(4): axes[i].plot([1, 2, 3]) plt.show() | Matplotlib

Matplotlib - Real-World Visualization Patterns

Identify the error in this code for creating a 2x2 grid of plots:

fig, axes = plt.subplots(2, 2)
for i in range(4):
    axes[i].plot([1, 2, 3])
plt.show()

AThe plot data list is invalid

Bplt.subplots(2, 2) creates only 2 plots, not 4

Cplt.show() is missing

Daxes is a 2D array, so axes[i] indexing causes an error

Step-by-Step Solution

Solution:

Step 1: Understand axes shape from plt.subplots(2, 2)
axes is a 2x2 numpy array of Axes objects, not a flat list.
Step 2: Identify indexing error
axes[i] tries to index a 2D array with one index, causing an error. Correct is axes[row, col] or flatten axes first.
Final Answer:
axes is a 2D array, so axes[i] indexing causes an error -> Option D
Quick Check:
2D axes need two indices or flatten before looping [OK]

Quick Trick: 2D axes need two indices or flatten before indexing [OK]

Common Mistakes:

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