
TODO for Cardinal package
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Priority: High
- Change "drop=NA" behavior to use "drop=FALSE"
- Larger-than-memory support for 'processed' imzML
- Utility methods for changing experimental design
- Statistical hypothesis testing

Priority: Medium
- Graphical user interface
- Parse more metadata from imzML datasets for MIAPE-Imaging
- Optical image registration

Priority: Low
- Native writing of imzML and Analyze 7.5 formats
- Support for more file formats (Bruker, etc.)
