feat: Add IO for DistanceMatrix in Phylip format #469
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This mirrors
newick.rs
and adds string/file IO for thebio_types::distancematrix::DistanceMatrix
type, in the Phylip distance matrix format.It supports square and (upper/lower) triangular matrices. Triangular matrices must not contain the diagonal.
Currently this is assuming the 'relaxed' format with arbitrary long names and single space separators. The 'strict' format requires names of exactly 10 chars (padded with whitespace) and is less flexible because of this.
I didn't find an actual proper spec for this format, but the closest one is probably this.
Also fix a broken doctest.
This will need to be merged after rust-bio/rust-bio-types#35, and the version of
bio-types
needs to be bumped.