Use when the user asks to "reverse log1p", "recover counts", "undo normalization", "convert normalized to counts", "reverse normalization", "get raw counts from log1p", "infer library size", "denormalize expression matrix", or when working with single-cell transcriptomics data that has been log1p-normalized and needs to be reverted to raw counts. Do NOT use for gene harmonization (that is stangene) or format conversion (that is stanobj). Position in stan* family chain — Upstream: stangene (consumes gene-harmonized h5ad whose X is log1p-normalized). Downstream: QC stage (eca-curation 03_qc, driven by /eca-run; or stanqc when it ships). Only invoked conditionally — skip when X is already integer counts.
2026-04-24