| [out] | distmat | Distances will be written to this matrix. will be allocated here as well. Caller must free with FreeSymMatrix() | 
    | [in] | mseq | Distances will be computed for these sequences | 
    | [in] | pairdist_type | Type of pairwise distance comparison | 
    | [in] | fdist_in | If not NULL, sequences will be written from this file instead of computing them | 
    | [in] | istart | Compute distances for sequences i:j, i>=istart, i<j. Usually 0. | 
    | [in] | iend | Compute distances for sequences i:j, i<iend, i<j Usually mseq->nseqs. | 
    | [in] | jstart | Compute distances for sequences i:j, j>=jstart, i<j Usually 0. | 
    | [in] | jend | Compute distances for sequences i:j, j<iend, i<j Usually mseq->nseqs. | 
    | [in] | fdist_out | If not NULL, distances will be written to this files |