Gene expression matrix.cvs is too large to load it

Thanks for the discussion and scripts here, we eventually figured out how to extract scRNA data for specific cell types from the large h5 file for the data from the Cell paper.

Now, I’m wondering how to do that for the new Allen Brain Cell Atlas?

The metadata ( seem to lack information that connects the cell types and cell IDs/labels or did I miss something?

As shown here (ABC Atlas: August Update Notes), it is possible to manually extract some cell IDs together with cell type information but the cell IDs seem to be in a different format than in the metadata file or are they related in some way?

If possible, it would be great to have a list of cell IDs together with the corresponding cell type (cluster, supertype, subclass) as for the previous data.