Install libghc-graphviz-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-graphviz-doc
Description:
bindings to Graphviz for graph visualization; documentation
This library provides bindings for the Dot language used by the Graphviz (http://graphviz.org/) suite of programs for visualising graphs, as well as functions to call those programs. . Main features of the graphviz library include: . Almost complete coverage of all Graphviz attributes and syntax. . Support for specifying clusters. . The ability to use a custom node type. . Functions for running a Graphviz layout tool with all specified output types. . The ability to not only generate but also parse Dot code with two options: strict and liberal (in terms of ordering of statements). . Functions to convert FGL graphs and other graph-like data structures to Dot code - including support to group them into clusters - with a high degree of customisation by specifying which attributes to use and limited support for the inverse operation. . Round-trip support for passing an FGL graph through Graphviz to augment node and edge labels with positional information, etc. . This package provides the documentation for a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.
Homepage: http://projects.haskell.org/graphviz/
Version: 2999.18.1.2-3build5
Section: universe/doc