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Ensure free_energy property is a float and not np.array(float) #259

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merged 1 commit into from
May 11, 2024

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@Andrew-S-Rosen Andrew-S-Rosen commented May 11, 2024

The PESCalculator.results["free_energy"] property should be formatted as a float but is currently formatted as a np.array(float). For instance, array(-4.0938973, dtype=float32). Since this is not the expected ASE type and because it is not iterable, this can cause a variety of unexpected problems. materialsvirtuallab/monty#668 is just one example.

I have ensured the free_energy property is returned as a float in this PR.

The ASE `Calculator.results` attribute of `free_energy` should be formatted as a `float` but is currently formatted as a `np.array(float)`. For instance, `array(-4.0938973, dtype=float32)`. Since this is not the expected ASE type and because it is not iterable, this can cause a variety of unexpected problems. materialsvirtuallab/monty#668 is just one example.

I have ensured `free_energy` is returned as a `float` in this PR.

Signed-off-by: Andrew S. Rosen <[email protected]>
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coderabbitai bot commented May 11, 2024

Walkthrough

The recent update in the codebase primarily involves a refinement in the calculate function of the ase.py module, where the method of accessing the free_energy value has been enhanced. This change ensures that the value is fetched as a single scalar by utilizing the .item() method, which helps in handling the data type more effectively and ensures consistency in the type of value returned.

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File Path Change Summary
.../ext/ase.py Modified access method for free_energy to use .item() for scalar extraction.

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Commits Files that changed from the base of the PR and between 088a8a8 and c74f949.
Files selected for processing (1)
  • src/matgl/ext/ase.py (1 hunks)

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Actionable comments posted: 0

Out of diff range and nitpick comments (1)
src/matgl/ext/ase.py (1)

181-181: Correctly converts free_energy to a float to prevent type-related issues.

Consider adding a comment explaining the use of .item() for clarity, especially for future maintainers.

@kenko911 kenko911 merged commit 35b08b5 into materialsvirtuallab:main May 11, 2024
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Hi @Andrew-S-Rosen, thanks for your changes! Merged.

@Andrew-S-Rosen Andrew-S-Rosen deleted the patch-1 branch May 11, 2024 23:47
Andrew-S-Rosen added a commit to Quantum-Accelerators/quacc that referenced this pull request May 12, 2024
Closes #2090.

Waiting on:
- matgl 1.1.2 (see
materialsvirtuallab/matgl#259)
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