DataVisualization

General Tools

• GnuPlot - easily graph data sets or equations - the coolest.
• RRDTool - graph time series data - screenshots
• WebDot - build visio/flowchart style graphs command line
• TouchGraph - visualize links between nodes
• HistoryFlow
• PloticuS - non-interactive software package for producing plots/charts/graphics from data
• RProject - The R Project for Statistical Computing
• FlExplorer - flash explorer, dynamically maps outgoing links
• TreeMaps
• dia - gtk+ based diagram creation program
• http://bioinformatics.icmb.utexas.edu/lgl/ - large graph layout
• FreeMind - mind-mapping software (a tree editor)
• http://www.maani.us/charts/index.php - generate flash charts in php
• DAP - data analysis and presentation
• http://www.jfree.org/jfreechart/ - build professional quality charts using java.
• http://moodss.sourceforge.net/ - graphical monitoring application
• AgorA - visualize communities by processing their email archives
• http://www.opendx.org/ - open source visualization data explorer - tutorials
• LogStatistics - a perl module i'm working on to summarize and visualize log data for monitoring and reporting.

Toolkits

• http://public.kitware.com/VTK/ - visualization toolkit
• http://ivtk.sourceforge.net/ - InfoVis toolkit
• http://prefuse.sourceforge.net/ - prefuse information visualization toolkit

Free Matlab clones

• Scilab - http://www-rocq.inria.fr/scilab/scilab.html
• Octave - http://www.octave.org/

OLAP

• http://en.wikipedia.org/wiki/OLAP - OLAP is an acronym for On Line Analytical Processing. It is an approach to quickly provide the answer to analytical queries that are dimensional in nature.
• http://mondrian.sourceforge.net/index.html - open source OLAP using a relational database
• http://jpivot.sourceforge.net/index.html - pivot tables
• http://www.palo.net/index.php - open source MOLAP bulit on excel.
• http://www.jpalo.com/ - java palo tools
• http://simkin.asu.edu/holodraw/ - draw data in 3D using VRML
• http://www.paraview.org/HTML/Index.html - parallel visualization application - designed with the need to visualize large data sets
• http://www.llnl.gov/visit/ - parallel interactive visualization

Wiki

• http://twiki.org/cgi-bin/view/Plugins/GraphLayoutPluginDev
• TWiki browser - http://twiki.org/cgi-bin/view/Plugins/TouchGraphAddOn

Data Vision

• generate reports from data in sql database (and flat files)
• written in java

Jasper Reports

• very big project, several gui front-end projects
• http://jasperreports.sourceforge.net/

PLplot

• http://plplot.sourceforge.net/examples/index.html
• perl interface
• The PLplot library can be used to create standard x-y plots, semilog plots, log-log plots, contour plots, 3D surface plots, mesh plots, bar charts and pie charts. Multiple graphs (of the same or different sizes) may be placed on a single page with multiple lines in each graph.

Code Graphing

• http://fcgp.sourceforge.net/ - Free Code Graphing Project

Links to more

• http://otal.umd.edu/Olive/ - online library of information visualization environments
• http://libarynth.fo.am/cgi-bin/view/Libarynth/InformationVisualisation
• http://www.usemod.com/cgi-bin/mb.pl?InformationVisualization
• http://citeseer.ist.psu.edu/eick96aspects.html
• http://citeseer.ist.psu.edu/antis96visualizing.html
• http://gvf.sourceforge.net/
• http://www.visualcomplexity.com/vc/index.cfm - mapping complex networks
• http://iv.slis.indiana.edu/sw/index.html - Information Visualization Software Repository
• http://graphics.stanford.edu/courses/cs348c-96-fall/resources.html - resources
• http://www.netvis.org/resources.php - visualizing social networks
• http://www.infosthetics.com/ - creative information visualization
• http://software.sci.utah.edu/scirun.html - scientific computing and imaging institute

Services on the web

• http://www.kartoo.com/ - visual search engine
• http://babynamewizard.com/namevoyager/lnv0105.html - baby names

Demonstrations

• http://textarc.org/ - visual represention of a text
• http://www.opte.org/maps/ - full internet maps
• http://perso.wanadoo.fr/pascal.brisset/kernel3d/kernel3d.html - linux kernel

On my list to check out...

• http://www.cs.waikato.ac.nz/ml/weka/ - weka - data mining with open source machine learning software in java
• http://davis.wpi.edu/~xmdv/index.html - interactive visual exploration of multivariate data sets
• http://www.research.att.com/areas/stat/xgobi/ - data visualization system for viewing high-dimensional data