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obikmer/UserDocMD/usage/estimate.md
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Eric Coissac caf59b5658 Update documentation for CLI command renames and new commands
Renames the reindex command to convert across all usage guides and navigation menus. Adds documentation for the newly introduced name-tree command. Updates flag references, such as replacing --metric with --distance in pack and phylo modules, and adjusts MkDocs configuration to match the revised structure. All changes are strictly limited to documentation and configuration files.
2026-08-28 23:06:05 +02:00

879 B

estimate

Estimate approximate-index parameters (z, evidence bits, false-positive rate) before building an index with --approx, without touching any files.

obikmer estimate [OPTIONS]

Options

Option Default Description
-k, --kmer-size 31 Kmer size used at query time (matches index's --kmer-size)
-z, --findere-z none Findere z parameter
--evidence-bits none Fingerprint bits per slot (b)
--fp none Target false-positive rate per z-window

Any two of -z, --evidence-bits, --fp may be given; the third is derived using the same model as index --approx and convert --approx-evidence (FP = 1 / 2^{b \cdot z}). The report printed to stdout includes: query k, effective indexed k (k-z+1), z, evidence bits, per-kmer false-positive rate, and per-z-window false-positive rate.