Research Workbench

CIGAR alignment span decoder

Calculate query and reference bases consumed by an alignment operation string.

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The starting values are hypothetical. Use aggregate or synthetic inputs only.

Calculation results

Query bases consumed
37
Reference bases consumed
33
Operation count
5

How to interpret the output

SAM operations M, I, S, = and X consume query bases. M, D, N, = and X consume reference bases. H and P consume neither. M can include mismatches. The decoder checks operation syntax and clipping placement, without checking alignment records, sequences or mapping quality.

Method reference