This release contains breaking changes that may require code updates. What's Changed For consistency and ease of use, the ElectronCountedData namedtuple has been replaced by the SparseArray class. The SparseArray has similar attributes as the ElectronCountedData, but scan_dimensions is now scan_shape[::-1], and frame_dimensions is now frame_shape. Here are the functions that are effected: stempy.image.electron_count() now returns a SparseArray instead of the namedtuple stempy.io.load_electron_counts() now also returns a SparseArray stempy.io.save_electron_counts() now requires a SparseArray argument instead of the namedtuple SparseArray now also supports attaching metadata. This metadata will be included in any of the HDF5 files written from a SparseArray instance. The various electron counting parameters used in stempy.image.electron_count() are now also automatically added to the metadata of the SparseArray instance. When performing electron counting on a dataset that contains multiple frames at each scan position, the electron events are now stored in separate arrays for each frame, rather than being append to a single array. Full Changelog: https://github.com/OpenChemistry/stempy/compare/1.1.1...2.0.0