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to_mtx

data_beans::export

Function to_mtx 

Source 
pub fn to_mtx(
    data: &dyn SparseIo<IndexIter = Vec<usize>>,
    out_dir: &str,
    opts: &MtxExport,
) -> Result<Box<str>>
Expand description

Export data to a 10x Genomics MEX (MatrixMarket) triplet in the directory out_dir, created if missing, readable by scanpy / Seurat. This is the inverse of crate::import::from_mtx; the directory is returned.

data-beans already stores the matrix as (features x cells), which is 10x’s orientation (features are rows, barcodes are columns), so no transpose is needed — unlike to_h5ad. A feature named id_name is split back into its id and name columns.