anndata.experimental.backed.Dataset2D.true_index_dim

property Dataset2D.true_index_dim: str

Because xarray loads its coordinates/indexes in memory, we allow for signaling that a given variable, which is not a coordinate, is the “true” index.

For example, the true index may be cell names but loading these over an internet connection may not be desirable or necessary for most use cases such as getting a quick preview of the columns or loading only one column that isn’t the index.

This property is the key of said variable. The default is index_dim if this variable has not been set.