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Nifty Free Image Viewers
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Scientific
: Statistics and Graphing
Nifty Free Image Viewers
One of my favorite adages is "A picture is worth a thousand words". It refers to the notion that a still image can convey a complex idea. Images can portray a lot of information quickly and more efficiently than text. They capture memories, and never let you forget something you want to remember, and refresh it in your memory.
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3D Slicer
3D Slicer (Slicer) is a multiplatform, open source, integrated software for visualization and image computing. It is intended for computer scientists and clinical researchers.
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GNU plotutils
The GNU plotutils package contains software for both programmers and technical users. Its centerpiece is libplot, a powerful C/C++ function library for exporting 2D vector graphics in many file formats, both vector and raster. It can also do vector graphics animations.
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Gnuplot
Gnuplot is a portable commandline driven interactive data and function plotting utility. Gnuplot supports many types of plots in either 2D and 3D. It can draw using lines, points, boxes, contours, vector fields, surfaces, and various associated text. It also supports various specialized plot types. Gnuplot supports many different types of terminals: interactive screen terminals (with mouse and hotkey functionality), pen plotters (like hpgl), printers (including postscript and many color devices), and printings to output file as vectorial pseudodevices like LaTeX, metafont, pdf, svg, or bitmap png. Gnuplot is easily extensible to include new devices.
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gretl
gretl is a free, opensource econometrics package under the GNU Public License. The package comprises a shared library, a commandline client program, and a graphical client built using GTK+. It is written in C. The library and commandline client should compile and run on any platform that supports ANSI C; the client uses the GNU readline library if available.
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Maxima
Maxima is a system for the manipulation of symbolic and numerical expressions, including differentiation, integration, Taylor series, Laplace transforms, ordinary differential equations, systems of linear equations, and vectors, matrices, and tensors. Maxima produces high precision results by using exact fractions and arbitrarily long floating point representations, and can plot functions and data in two and three dimensions.
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PSPP
PSPP is a program for statistical analysis of sampled data. It interprets commands in the SPSS language and produces tabular output in ASCII, PostScript, or HTML format.
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Scilab
Scilab is a scientific software package for numerical computations providing a powerful open computing environment for engineering and scientific applications. Scilab includes hundreds of mathematical functions with the possibility to add interactively programs from various languages (C, Fortran...). It has sophisticated data structures (including lists, polynomials, rational functions, linear systems...), an interpreter and a high level programming language.
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AD Model Builder
(commercial) AD Model Builder is a package for creating nonlinear statistical models to analyze data.
ARfit
ARfit is a collection of Matlab modules forestimating parameters of multivariate autoregressive (AR) models,diagnostic checking of fitted AR models, and analyzing eigenmodes of fitted AR models.
Bayani
Bayani aims to be a scientific quality Graph Plotter totally in Arabic. This is done by implementing an arabic GUI and a total arabic strings handling: Axis labels, plot titles etc. It is written in Trolltech's QT 3.x library and destined to the *n*x platforms.
biggles
Biggles is a Python module for creating publicationquality 2D scientific plots. It supports multiple output formats (postscript, x11, png, svg, gif), understands simple TeX, and sports a highlevel, elegant interface. It's intended for technical users with sophisticated plotting needs.
Bouquet
Bouquet is a graph generator written in ANSI Common Lisp. Bouquet produces Tulip graph description files; clusters and properties are supported.
BUGS
The BUGS (Bayesian inference Using Gibbs Sampling) project is concerned with flexible software for the Bayesian analysis of complex statistical models using Markov chain Monte Carlo (MCMC) methods.
Cerc
Cerc is a class providing a fixed length array of int or double that provides access to some of the GSL stats commands (mean, stdev, absdev, etc).
CSVSee
CSVSee graphs data from CSV files, especially those containing timestamps. You can graph all columns, or specific columns matching regular expressions.
Ctioga
Ctioga is a commandline plotting utility. It enables users to make publicationquality plots of data and mathematical functions quickly. Ctioga has been designed with ease of use and extensibility in mind. It is based on the powerful Tioga plotting library.
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Cuadro+ Thermal Simulator and Benchmarker
Cuadro+ Thermal Simulator and Benchmarker calculates the thermal history of a chip being cooled by a heatsink and forced convection. The algorithm employs a finite difference scheme and forward time stepping.
cug
Cug is an equation plotter with a heavy emphasis on beautiful renderingit can be considered a simple openGL modeler parameterized by mathematical equations. Extensive controls allow for realtime modification of lighting, coloring, texturing, fog, and a few other aspects. Rotation, panning, and zooming are easily controlled with the mouse. An offscreen rendering target allows for generation of large images.
daVinci Presenter
daVinci Presenter is an innovative solution for graph visualization. With daVinci Presenter, complex structures can be automatically drawn in a most effective way. It allows you to improve your work by creating impressive diagrams of large networks, conceptual drafts, software architectures, work flows, etc.
descartes
An image, data, and function plotter. Function parameters can be manually tuned [or automatically fitted  not yet implemented] to given xy data. Highlevel scripting capability is provided [not yet] by the underlying Python programming language.
Econometrics Toolbox
Econometrics Toolbox is for Matlab provides public domain source code useful in statistical estimation, graphics, and data manipulation.
ESS
Emacs Speaks Statistics: a programming interface and process interface for statistical programming and data analysis
fofx
fofx is a function grapher for charactercell terminals. fofx takes a whitebread mathematical function, such as "sin(x)", and turns it into a 'graph' made up of text characters.
Freeplot
FreePlot is a simple mathematical program that plots 2D functions written in Python. It provides an easy to use interface and a powerful graphing mechanism that allows the user to understand what he is doing at all times. FreePlot features: Save functions to an image file, unlimited number of functions on the same cartesian plane, multiple colors, multiple line styles and marks, and legend support.
g3data
g3data is used for extracting data from graphs. In publications graphs often are included, but the actual data is missing. g3data makes the extracting process much easier.
gaiw
The Grace ASCII Import Wizard ("gaiw") is a crossplatform, Qtbased GUI allowing Grace users to create 2D XY plots from ASCII data files very easily. Grace is a very powerful, crossplatform, opensource 2Dplotting program which enjoys an excellent reputation of quality. However, few people actually create their data sets manually and the import functionality delivered with Grace makes the creation of complex plots (many graphs with many curves in each graph, with data coming from different files) somewhat tedious.
geg
geg is a GTK+ Equation Grapher that allows you to visualise multiple 2Dfunctions of one variable, eg f(x) = 3 + sin(x), etc.
GENBLIS
GENetic optimization and Bootstrapping of LInear Structures: an evolutionary program which estimates structural equation models with latent variables by combining the global search strength of evolutionary algorithms with the ability of derivative based algorithms to do rapid local hill climbing.
GLE
GLE is a graphics language that produces postscript, EPS, PDF, PNG, or JPG ouput from a simple script file. The GLE scripting language is full featured with variables, subroutines, logic control, looping, and graphing tools. It is great for plotting and charting data.
GLPlot
GLPlot is a plot package designed to be used from other applications. One of the goals is to replace gnuplot in Octave. It is based on Gtk+, OpenGL and GtkGLExt.
GPlot
Gplot is a smart frontend for gnuplot. With few if any command line options one can plot one or more sets of data without learning the details of gnuplot.
gpss
gpss is a gnuplot front end for gathering and analyzing data. Currently supported sources are various /proc entries, ping, traceroute, vmstat, nagios, snort perf data, etc. It offers both 2D and 3D interactive or batch graphing and capture of things like bits per second, packets per second, drop percentage, fragments per second, and more. It is useful as both a performance evaluation tool or a NOC tool in the short term, and a trending tool for longer terms.
graphtool
graphtool is a program that contains general graph measurements algorithms, such as degree or properties distributions, degree or properties correlations, average distance, clustering, graph filtering, graph history, graph layout, and more, as well as a random graph generation routine.
GraphEd
GraphEd is an extensible graph editor. It supports directed and undirected labelled graphs of unlimited size and degree, with self loops and multiple edges. Edges are polylines with an arbitrary number of segments. There are several options to customize the graphical appearance of nodes and edges.
Graphite
Graphite is a Python graphing package. Graphite enable the creation of scientific, engineering, and business graphs. Some graph types to be included are line graphs, bar charts, function plots, polar plots, parametric plots, and mesh plots. Graphite can produce output for formats such as postcript, pdf, gif, Windows, QuickDraw, Tk by using the PIDDLE backend. It should run on any platform that supports Python.
Graphlet
Graphlet is a Toolkit for Implementing Graph Editors and Graph Drawing Algorithms.
graphopt
graphopt is a graph layout optimizer based on the iterative application of laws of physics instead of heuristics.
Graphtool
GraphTool is an interactive tool for editing graphs and visualizing the execution and results of graph algorithms. It runs under the X Windows environment and has full window/mouse interface. While the primary purpose of GraphTool is to provide a means for experimentally investigating the performance of graph algorithms, it has other useful features as well. It provides features for printing graphs in a visually appealing format, which makes it easier to prepare papers for publication.
Grocer
Grocer is an econometric toolbox particularly devoted to time series for Scilab, a matrixoriented software similar to Gauss and Matlab.
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GtkGraph
GtkGraph is a simple graphing calculator written for X Windows using the Gtk widget set.
Guppi
Guppi is a GNOMEbased framework for graphing and interactive data analysis. Guppi is a library that can be used to extend other programs. Your own programs can either link directly to Guppi's shared libraries, or can embed Guppi plots via Bonobo, GNOME's component architecture.
Histo
Histo plots charts in the terminal with arbitrary streaming or nonstreaming data.
IDSS
IDSS is a statistical application for email surveys. It parses HTML questionnaires filled in by respondents. Output is: a separated database, a SAS DATA step import program, and correspondence tables between variable characteristics and field values. IDSS was developed as an alternative to Webbased statistical surveys. No coding experience or network programming is required to set up a survey. Tools for checking execution and coherence of data are available. Performing database authoring takes barely more running time than gzip compression of the survey questionnaires.
IsaViz
IsaViz is a visual environment for browsing and authoring RDF models represented as graphs. It features: # a 2.5D user interface allowing smooth zooming and navigation in the graph # creation and editing of graphs by drawing ellipses, boxes and arcs, RDF/XML, Notation 3 and NTriple import, RDF/XML, Notation 3 and NTriple export, but also SVG and PNG export.
jsplot
jsplot is a free interactive drawing and charting tool that runs on Unix and Windows95/NT. It is mostly a vector graphics program but can also import a number of image formats.
KaHIP
KaHIP (Karlsruhe High Quality Partitioning) is a family of graph partitioning programs. It includes KaFFPa (Karlsruhe Fast Flow Partitioner) in its variants Strong, Eco and Fast, KaFFPaE (KaFFPaEvolutionary) which is a parallel evolutionary algorithm that uses KaFFPa to provide combine and mutation operations, as well as KaBaPE which extends the evolutionary algorithm.
KGraphViewer
KGraphViewer is a GraphViz dot graph viewer for KDE. The graphviz program suite is a free software set of layout engines for graphs. They are commonly used in scientific domains and particularly in computer science. But until now there was a lack of GUI to look at the graphs.
KMatplot
KMatplot is a gnuplotlike tool for plotting data sets in either two or three dimensions. It can plot many types of 2d plots, including pixmaps and contours, and 3d surfaces. It offers a full WYSIWYG mode with multiple objects on a single page.
Kroket
Kroket is an interactive graph visualization software. It is similar to dot/graphviz, but focuses on the exploration of the graph. To this end, it features grouping, collapsing and filtering of nodes.
ksciplot
ksciplot is a function plotter for the KDE project.
LabPlot
LabPlot is a KDE application for data plotting and function analysis. It supports both 2D and 3D plots and tries to emulate most of the functions supported by programs like Microcal Origin or SPSS Sigmaplot.
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