Newick format - Text data format

Newick format is a text data format created in 1986.

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In mathematics, Newick tree format (or Newick notation or New Hampshire tree format) is a way of representing graph-theoretical trees with edge lengths using parentheses and commas. It was adopted by James Archie, William H. E. Read more on Wikipedia...

Newick format Wikipedia page
Newick format first developed in University of Washington and University of British Columbia
See also: (1 related languages)PhyloXML

Example from the web:

(A:0.1,B:0.2,(C:0.3,D:0.4):0.5);

Example from Wikipedia:

Tree → RootLeaf ";" | RootInternal ";" | Branch ";"
   RootLeaf → Name | "(" Branch ")" Name
   RootInternal → "(" Branch "," BranchSet ")" Name