[Solved] The code below is intended to show an image... What is the problem?import matplotlib.pyplot as plt import numpy as np image = np.random.rand(3,3) plt.imshow(image, cmap=hot) plt.colorbar() plt.show() | Matplotlib

Matplotlib - Image Display

The code below is intended to show an image with the 'hot' colormap and a colorbar, but it raises an error. What is the problem?

import matplotlib.pyplot as plt
import numpy as np
image = np.random.rand(3,3)
plt.imshow(image, cmap=hot)
plt.colorbar()
plt.show()

Aplt.colorbar() must be called before plt.imshow().

BThe image array shape is invalid for imshow.

CThe colormap name 'hot' should be a string: cmap='hot'.

Dnp.random.rand() cannot be used for images.

Step-by-Step Solution

Solution:

Step 1: Check the cmap parameter usage
The colormap name must be a string. Here, hot is used without quotes, causing a NameError.
Step 2: Verify other code parts
The image shape is valid, and colorbar usage is correct. np.random.rand() is valid for image data.
Final Answer:
The colormap name 'hot' should be a string: cmap='hot'. -> Option C
Quick Check:
Colormap names need quotes [OK]

Quick Trick: Always put colormap names in quotes [OK]

Common Mistakes:

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The code below is intended to show an image with the 'hot' colormap and a colorbar, but it raises an error. What is the problem?