graphcompare - A command-line tool to compare graph files in DOT or tabular format.

VERSION

v0.1.1

SYNOPSIS

Usage:

graphcompare  -input file1.dot,file2.dot \
              -stats                     \
              -colors HARD               \
              -output output.dot         \
              -table table.tbl           \
              -venn venn.svg             \
              -web graph.html

DESCRIPTION

This application compares two or more graph files (DOT or tabular). It prints a merged graph with different colors for nodes and edges depending on the files in which they appear. To read the files, graphcompare uses the module Dot::Parser or the module Tabgraph::Reader, both located in lib/.

The main functionality of the script can be found at lib/Graphs/Compare.pm. This distribution comes with a command-line tool (graphcompare) to compare the files.

By default, graphcompare will print the resulting graph to STDOUT, but you can change it with the option --output (see options below).

graphcompare has some optional outputs, each one specified by one option.

Venn diagram

If given the option -v, graphcompare will create an svg file containing a venn diagram. In this image, you will be able to see a comparison of the counts of nodes and relationships in each input DOT file, and those nodes/relationships common to more than one file. The colors will be chosen using one of the profiles in data/colors.txt. By default, the color palette is set to be "SOFT". To change it, use the option -c (see options below).

Table

Complementary to the venn diagram, one can choose to create a table containing all the counts (so it can be used to create other plots or tables). The table is already formated to be used by R. Load it to a dataframe using:

        df <-read.table(file="yourtable.tbl", header=TRUE)

Webpage with the graph

With the option -w, one can create a webpage with a representation of the merged graph (with different colors for nodes and relationships depending on their presence in each DOT file). To make this representation, graphcompare uses the Open Source library cytoscape.js. All the cytoscape.js code is embedded in the html file to allow maximum portability: the webpage and the graph work without any external file/script dependencies. This allows for an easy upload of the graph to any website.

Parallel Plot

With the option -p, one can choose to create three plots comparing the in-degree, out-degree and total degree of all the nodes in each of the graphs. In order for this option to work, one would need R installed, along with the R packages: ggplot2 and GGally.

UpSetR

With the option -u, one can create an UpSetR plot for the nodes and the interactions. This option requires Statistics::R, and the R package: UpSetR.

INSTALLATION

perl Makefile.PL
make
make test
make install

It is important to note that if you decide to install graphcompare manually, the script needs to use File::Share to find the templates. If you choose to not use the Makefile.PL installer, you may encounter some bugs, as graphcompare will be unable to open the templates.

DIRECTORIES

These are the directories and the files inside the distribution:

• bin/

  This directory contains the main script: graphcompare.

• lib/

  Here we can find the modules used by the program: Graphs::Compare, Dot::Parser, Dot::Writer, Tabgraph::Reader, Tabgraph::Writer. The main functionality of the application is implemented in Graphs::Compare. Dot::Parser is a Perl module that reads graphviz files. To see how it works, refer to its documentation:

    perldoc lib/Dot/Parser.pm
  

• share/

  Here we can find the templates graphcompare uses to create the svg venn diagrams and the html output. We can also find some test files, test1.dot, test2.dot and test3.dot to try out the program.

• t/

  This is the directory with the test files and the script that runs the tests (parser.t).

• Makefile.PL

  This is the script that uses ExtUtils::MakeMaker to create a Makefile to install the distribution.

• MANIFEST

  List of all the files of the distribution.

OPTIONS

• -h, -help

  Shows this help.

• -in, -input <file1,file2,...>

  REQUIRED. Input files, separated by commas. Only DOT (graphviz) or TBL files.

• -out, -output <filename.dot>

  Saves the merged dot file to the specified file. Default to STDOUT.

• -fmtin FORMAT

  Forces the program to read ALL the files as 'DOT' or 'TBL'. By default, graphcompare looks at the extension of each file to choose one parser or another.

• -fmtout FORMAT

  Changes the format of the output graph. By default it will use the DOT language. As of now, you can change it to TBL.

• -c, -colors <profile>

  Color profile to use: SOFT (default), HARD, LARGE or CBLIND.

• -ig, -ignore-case

  Makes dotocompare case insensitive. By default, graphcompare is case sensitive.

• -s, -stats

  Prints to STDERR some graph properties for each DOT file. It can be time consuming if the input graphs are very big.

• -v, -venn <filename.svg>

  Creates a venn diagram with the results.

• -u, -upsetr <filename>

  Creates two svg files with the UpSetR plots for Interactions and Nodes see: https://cran.rstudio.com/web/packages/UpSetR/

• -p, -parallel <basename>

  Creates three parallel plots comparing the in/out/total degree of the graphs using the basename as filename.

• -w, -web <filename.html>

  Writes html file with the graph using cytoscape.js

• -n, -node-list <filename.tbl>

  Creates a file with a list of all the nodes and their appeareance on the input files. Each column will represent one of the files, and they will contain a one if the node appears in it, or a zero if it does not.

BUGS AND PROBLEMS

Current Limitations

• Undirected_graphs

  Only works with directed graphs. If undirected, graphcompare considers them to be directed.

• Clusters

  Still no clusters support e.g. {A B C} -> D

• Multiline_IDs

  No support for multiline IDs.

• No_escaped_quotes

  No support for quotes in node IDs (even if properly escaped).

• Compass_ports

  No support for compass ports.

DEPENDENCIES

• File::ShareDir::Install
• File::Share
• Test::More
• Pod::Usage
• Cwd
• Graph::Directed (only if using option -s)
• AutoLoader (if comparing more than 5 files)
• Color::Spectrum::Multi (if comparing more than 5 files)
• Statistics::R (if option -p)
• R modules: ggplot2, GGally (if option -p), UpSetR (if option -u)

AUTHOR

Sergio Castillo Lara - s.cast.lara@gmail.com

Reporting Bugs

Report Bugs at https://github.com/scastlara/graphcompare/issues

COPYRIGHT

graphcompare  command-line tool to compare graph files.
Copyright (C) 2015  Sergio CASTILLO LARA

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.