Provided by: vmatch_2.3.1+dfsg-8_amd64 bug


       chain2dim - two-dimensional match chaining


       chain2dim [options] <matchfile>


       -global <param>
           Global chaining. Optional parameter "gc" switches on gap costs (according to
           L1-model). Optional parameter "ov" means that overlaps between matches are allowed.

       -local <param>
           Compute local chains (according to L1-model). If no parameter is given, compute local
           chains with maximum score. If parameter is given, this must be a positive number
           optionally followed by the character b or p. If only the number, say k, is given, this
           is the minimum score of the chains output. If a number is followed by character b,
           then output all chains with the largest k scores. If a number is followed by character
           p, then output all chains with scores at most k percent away from the best score.

       -wf <factor>
           Specify weight factor > 0.0 to obtain the score of a fragment. Requires one of the
           options -local, -global gc or -global ov.

       -maxgap <width>
           Maximal width of gap in chain.

       -outprefix <prefix>
           Specify prefix of files to output chains.

           Only compute chains which do not cross sequence borders (not possible for matches in
           open format).

       -thread <keywords...>
           Thread the chains, i.e. close the gaps. Accepts an optional list of keywords "minlen1
           minlen2 maxerror1 maxerror2", each followed by a number specifies the minimum length
           and the maximum error rate of thread. 1 refers to match instance in indexed sequence,
           2 refers to matching instance in query.

           Do not output the chains and only report their lengths and scores.

           Be verbose.

           Show the version of the Vmatch package.

           Show help.