Expand description
BAM index (BAI) and fields.
A BAM index (BAI) is used with an associated coordinate-sorted BAM file that allows random access to records, e.g., querying.
The index contains a list of reference sequences parallel to the one defined in the BAM file. Each indexed reference sequence has a calculated set of hierarchical bins at different granularities. The bins then define a list of physical file positions in the BAM to search for overlapping records.
When reading entire BAM files sequentially, a BAM index is not necessary.
§Examples
§Reading a BAM index
use noodles_bam::bai;
let index = bai::fs::read("sample.bam.bai")?;
Re-exports§
pub use self::fs::read;
pub use self::fs::write;
pub use self::io::Reader;
pub use self::io::Writer;
pub use self::async::Reader as AsyncReader;
pub use self::async::Writer as AsyncWriter;
Modules§
Type Aliases§
- Index
- A BAM index.