API

Loader

Loader(*[, batch_sampler, chunk_size, ...])	A loader for on-disk data anndata stores.
Loader.__iter__()	Iterate over the on-disk datasets.

io helpers

write_sharded(group, adata, *[, ...])	Write a sharded zarr store from a single AnnData object.
DatasetCollection(group, *[, mode, ...])	A preshuffled collection object including functionality for creating, adding to, and loading collections shuffled by annbatch.

Samplers

ClassSampler(chunk_size, preload_nchunks, ...)	Sample class-coherent batches with replacement.
RandomSampler(chunk_size, preload_nchunks, ...)	Shuffled chunk-based sampler for batched data access.
SequentialSampler(chunk_size, ...[, ...])	Ordered chunk-based sampler for batched data access.
DistributedSampler(sampler, *, dist_info[, ...])	Distributed chunk-based sampler that shards data across distributed processes.

abc

Sampler()

Base sampler class.

types

LoaderOutput	The output of the loader, the "data matrix" with its obs, optional, var, optional, and index, also optional.
LoadRequest	Load request from sampler.