`Dataset5dstem` - stack reduction, slicing, Nion Swift, match `Dataset4dstem` API convention#151

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bobleesj wants to merge 12 commits intoelectronmicroscopy:devfrom

bobleesj:5dstem

Commits on Jan 17, 2026

Add grid visualization to Dataset3d.show() with ncols and returnfig options
bobleesj
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Add NumPy-style docstrings and enhance Dataset3d.show()
bobleesj
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Add Dataset5dstem class for 5D-STEM data with stack operations, slicing, and virtual imaging
bobleesj
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Improve Dataset5dstem: ArrayLike inputs, np.integer support, torch GPU error, slicing metadata fix
bobleesj
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Add indexing examples to Dataset5dstem docstring and notebook with distinct sizes
bobleesj
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Consolidate 5D-STEM tests and add mock Nion Swift fixture
bobleesj
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Add NumPy-style docstring examples to read_5dstem, from_array, from_4dstem
bobleesj
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Add *.ipynb to gitignore
bobleesj
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