Liftoff.bio
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Open sourceSingle-Cell & SpatialLibraries & SDKs

AnnData

Annotated data matrices for single-cell at scale

WebsiteSource codePackage

AnnData stores a data matrix together with per-observation and per-variable annotations, unstructured metadata and multidimensional embeddings. Its .h5ad format is the lingua franca of single-cell tooling.

Example

1import anndata as ad
2adata = ad.read_h5ad("data.h5ad")
3print(adata)          # cells × genes, with obs/var annotations
4adata.obs["cell_type"].value_counts()

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