We expect an adt_normalization group at the root of the file, containing information about the normalization of the ADT count matrix.
The group itself contains the parameters and results subgroups.
No ADT data was available prior to version 2.0 of the format, so the adt_normalization group may be absent in pre-v2.0 files.
Definitions:
adt_available: whether ADTs are present in the dataset. This is typically determined by examining theinputsstep.num_cells: number of cells remaining after QC filtering. This is typically determined from thecell_filteringstep.
No contents are mandated for parameters.
If adt_available = false, results should be empty.
If adt_available = true, results should contain:
size_factors, a 1-dimensional float dataset of length equal tonum_cells, containing the size factor for each cell.
Added in version 2.0.