preprocess.load_manifest
preprocess.load_manifest(platform)Address-to-probe mapping for one platform, indexed by probe id.
Columns: address_a, address_b (nullable), type (I/II) and channel (Grn/Red, empty for type II). Cached for the process – parsing 850,000 rows per call would dominate a run.
Type II probes have no address_b and no channel: they read methylated in green and unmethylated in red at a single address. Type I probes have two addresses in one channel, and the other channel at those same addresses is the out-of-band signal that :mod:falconage.preprocess.idat uses as its background null.