moscot.base.problems.BirthDeathProblem.set_xy

BirthDeathProblem.set_xy(data, tag)

Set a cost/kernel matrix for the linear term.

Parameters:

• data (DataFrame) – Cost or kernel matrix. Its index must be equal to adata_src.obs_names and its columns to adata_tgt.obs_names.

• tag (Literal['cost_matrix', 'kernel']) – Whether data is a cost or a kernel matrix.

Return type:

None

Returns:

: Nothing, just updates the following fields:

• xy - the linear term.

• stage - set to 'prepared'.