twinfer.inference.covariance_decomposition_z_scores.sister_arrays

twinfer.inference.covariance_decomposition_z_scores.sister_arrays(table, genes, time_step)

Arrange a long table into per-gene sister arrays.

table: DataFrame with clone_id, replicate (1 and 2), time_step and one column per gene. Returns (clone ids sorted, {gene: array of shape (N, 2)}) at time_step; raises ValueError unless every clone has both sisters.