Solving np.tile Issues with 2D Boolean Arrays in Python

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Understanding the Problem

Let’s start with a given 2D boolean mask array:

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However, running this command actually produces a flat 1D array instead of the desired 3D structure:

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This problem is common and can be frustrating when you're working with more complex data structures.

The Solution

Step-by-step Solution

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Output Explanation: The command above will produce:

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This matches your expected outcome perfectly, creating a 3D array that consists of the original 2D boolean mask repeated three times.

Conclusion

Happy coding!