Dap is a statistics and graphics program, that performs data management, analysis, and graphical visualization tasks which are commonly required in statistical consulting practice. Dap was written to be a free replacement for SAS In addition, SAS has many business solutions that enable large scale software solutions for areas such as IT management, human resource management, financial management, business intelligence, customer relationship management and more, but users are assumed to have a basic familiarity with the C programming language C is a general-purpose computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system in order to permit greater flexibility. Unlike R In computing, R is a programming language and software environment for statistical computing and graphics. It is an implementation of the S programming language with lexical scoping semantics inspired by Scheme. R was created by Ross Ihaka and Robert Gentleman at the University of Auckland, New Zealand, and is now developed by the R Development it has been designed to be used on large data sets.

Features

Dap is a command line driven program. Using its internal commands, one can perform tests on means and percentiles A percentile is the value of a variable below which a certain percent of observations fall. So the 20th percentile is the value (or score) below which 20 percent of the observations may be found. The term percentile and the related term percentile rank are often used in descriptive statistics as well as in the reporting of scores from norm-, correlation In statistics, correlation and dependence are any of a broad class of statistical relationships between two or more random variables or observed data values, ANOVA In statistics, analysis of variance is a collection of statistical models, and their associated procedures, in which the observed variance is partitioned into components due to different sources of variation. In its simplest form ANOVA provides a statistical test of whether or not the means of several groups are all equal, and therefore, categorical analysis, linear and logistic regression analysis and non parametric statistics. It can also be used to create scatterplots A scatter plot or scattergraph is a type of mathematical diagram using Cartesian coordinates to display values for two variables for a set of data, line graphs In graph theory, the line graph L of an undirected graph G is another graph L(G) that represents the adjacencies between edges of G. The name line graph comes from a paper by Harary & Norman (1960) although both Whitney (1932) and Krausz (1943) used the construction before this. Other terms used for the line graph include edge graph, the theta- and histograms of data.

It has been designed so as to cope with very large data sets; even when the size of the data exceeds the size of the computer's memory Computer data storage, often called storage or memory, refers to computer components, devices, and recording media that retain digital data used for computing for some interval of time. Computer data storage provides one of the core functions of the modern computer, that of information retention. It is one of the fundamental components of all.

See also

Free software portal Free software is software that is distributed in a manner that allows its users to run the software for any purpose, to redistribute copies of, and to examine, study, and modify the source code. The term free software was coined in 1983, with free denoting the broad freedom given to users, rather than being available free of charge . Alternative

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Statistical software A statistical package is a suite of computer programs that are specialised for statistical analysis. It enables people to obtain the results of standard statistical procedures and statistical significance tests, without requiring low-level numerical programming. Most statistical packages also provide facilities for data management
Public domain Works are in the public domain if they are not covered by intellectual property rights at all, if the intellectual property rights have expired, and/or if the intellectual property rights are forfeited. Examples include the English language, the formulae of Newtonian physics, as well as the works of Shakespeare and the patents over powered flight Dataplot · Epi Info Epi Info is public domain statistical software for epidemiology developed by Centers for Disease Control and Prevention in Atlanta, Georgia (USA) · CSPro CSPro, short for Census and Survey Processing System is a public domain statistical package developed by the U.S. Census Bureau, Macro International, and Serpro S.A. Its major funding was from the U.S. Agency for International Development · X-12-ARIMA X-12-ARIMA is the U.S. Census Bureau's software package for seasonal adjustment. It can be used together with gretl, which provides a graphical user interface for X-12-ARIMA
Open source Open-source software is computer software that is available in source code form for which the source code and certain other rights normally reserved for copyright holders are provided under a software license that permits users to study, change, and improve the software. Open source licenses often meet the requirements of the Open Source ADMB · DAP · gretl gretl is an open-source statistical package, mainly for econometrics. The name is an acronym for Gnu Regression, Econometrics and Time-series Library. It has a graphical user interface and can be used together with X-12-ARIMA, TRAMO/SEATS, R, Octave, and Ox. It is written in C, uses GTK as widget toolkit for creating its GUI, and uses gnuplot for · JMulTi · OpenBUGS OpenBUGS is a computer software for the Bayesian analysis of complex statistical models using Markov chain Monte Carlo methods. OpenBUGS is the open source variant of WinBUGS (Bayesian inference Using Gibbs Sampling). The latest version can run on Windows and Linux, as well as from inside the R statistical package · PSPP PSPP is a free software application for analysis of sampled data. It has a graphical user interface and conventional command line interface. It is written in C, uses GNU Scientific Library for its mathematical routines, and plotutils for generating graphs · R In computing, R is a programming language and software environment for statistical computing and graphics. It is an implementation of the S programming language with lexical scoping semantics inspired by Scheme. R was created by Ross Ihaka and Robert Gentleman at the University of Auckland, New Zealand, and is now developed by the R Development · Simfit · SOFA Statistics · XLispStat
Freeware BV4.1 · XploRe · WinBUGS
Retail Retail software is computer software sold to end consumers, usually under restricted licenses. Until the emergence of the Internet, retail software represented, until the 2000s, the vast majority of all end consumer software used and was referred to as shrinkware because software almost always ships in a shrinkwrapped box. An important historical
Cross-platform In computing, cross-platform, or multi-platform, is an attribute conferred to computer software or computing methods and concepts that are implemented and inter-operate on multiple computer platforms. Cross-platform software may be divided into two types; one requires individual building or compilation for each platform that it supports, and the Data Desk Data Desk is a software program for visual data analysis, visual data exploration, and statistics. It carries out Exploratory Data Analysis and standard statistical analyses by means of dynamically linked graphic data displays that update any change simultaneously · GAUSS · GraphPad InStat · GraphPad Prism · JMP · MATLAB MATLAB is a numerical computing environment and fourth-generation programming language. Developed by MathWorks, MATLAB allows matrix manipulations, plotting of functions and data, implementation of algorithms, creation of user interfaces, and interfacing with programs written in other languages, including C, C++, and Fortran · Mathematica Mathematica is a computational software program used in scientific, engineering, and mathematical fields and other areas of technical computing. It was originally conceived by Stephen Wolfram and is developed by Wolfram Research of Champaign, Illinois · OxMetrics OxMetrics is an econometric software including the Ox programming language for econometrics and statistics, developed by Jurgen Doornik and David Hendry. OxMetrics originates from PcGive, one of the first econometric software for personal computers, initiated by David Hendry in the 1980s at the London School of Economics · RATS · SAS · SPSS SPSS is a computer program used for statistical analysis. Between 2009 and 2010 the premier software for SPSS was called PASW Statistics. The company announced July 28, 2009 that it was being acquired by IBM for US$1.2 billion. As of January 2010, it became "SPSS: An IBM Company" · Stata Stata is a general-purpose statistical software package created in 1985 by StataCorp. It is used by many businesses and academic institutions around the world. Most of its users work in research, especially in the fields of economics, sociology, political science, and epidemiology · SUDAAN · S-PLUS S-PLUS is a commercial implementation of the S programming language sold by TIBCO Software Inc.
Windows only BMDP · EViews EViews is a statistical package for Windows, used mainly for time-series oriented econometric analysis. It is developed by Quantitative Micro Software (QMS), now a part of IHS. Version 1.0 was released in March 1994, and replaced MicroTSP. The current version of EViews is 7.1, released in April 2010 · GenStat · MedCalc · Minitab Minitab is a statistics package. It was developed at the Pennsylvania State University by researchers Barbara F. Ryan, Thomas A. Ryan, Jr., and Brian L. Joiner in 1972. Minitab began as a light version of OMNITAB, a statistical analysis program by NIST · NCSS · SHAZAM · SigmaStat · STATISTICA · StatXact StatXact is a statistical software package for exact statistics. It calculates exact p-values and confidence intervals for contingency tables and non-parametric procedures. It is marketed by Cytel Inc · SYSTAT SYSTAT is a statistics and statistical graphics software package, developed by Leland Wilkinson in the late 1970s, who was at the time an assistant professor of psychology at the University of Illinois at Chicago. Systat was incorporated in 1983 and grew to over 50 employees · The Unscrambler · UNISTAT
Excel add-ons Microsoft Excel is a spreadsheet application written and distributed by Microsoft for Microsoft Windows and Mac OS X. It features calculation, graphing tools, pivot tables and a macro programming language called VBA (Visual Basic for Applications). It has been the most widely used spreadsheet application available for these platforms since version Analyse-it · SPC XL · UNISTAT for Excel · XLfit
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GNU Project The GNU Project is a free software, mass collaboration project, announced on September 27, 1983, by Richard Stallman at MIT. It initiated the GNU operating system, software development for which began in January 1984. The founding goal of the project was, in the words of its initial announcement, to develop "a sufficient body of free software
History GNU Manifesto The GNU Manifesto was written by Richard Stallman and published in March 1985 in Dr. Dobb's Journal of Software Tools as an explanation and definition of the goals of the GNU Project, and to call for participation and support. It is held in high regard within the free software movement as a fundamental philosophical source. The full text is · Free Software Foundation The Free Software Foundation is a non-profit corporation founded by Richard Stallman on 4 October 1985 to support the free software movement, a copyleft-based movement which aims to promote the universal freedom to create, distribute and modify computer software. The FSF is incorporated in Massachusetts, USA (Europe The Free Software Foundation Europe was founded in 2001 as an official European sister organization of the U.S.-based Free Software Foundation (FSF) to take care of all aspects of free software in Europe. FSF and FSFE are financially and legally separate entities · India The Free Software Foundation of India, is a sister organisation to the Free Software Foundation. It was founded in Thiruvananthapuram , the capital of Kerala in 2001, as a non-profit Company. The FSFI advocates to promote the use and development of free software in India. This includes educating people about free software, including how it can · Latin America Free Software Foundation Latin America is the Latin American sister organisation of Free Software Foundation. It is the fourth sister organisation of FSF, after Free Software Foundation Europe and Free Software Foundation India. It was launched on November 23, 2005 in Rosario, Argentina) · History of free software "Free software" may refer to either software which is available to the end user at no cost, or to software which is licensed under either a free software or open source licence as defined by the Free Software Foundation and Open Source Initiative respectively. The content of this article relates to the latter type of software
Licenses GNU General Public License The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU project · GNU Lesser General Public License The GNU Lesser General Public License or LGPL is a free software license published by the Free Software Foundation (FSF). It was designed as a compromise between the strong-copyleft GNU General Public License or GPL and permissive licenses such as the BSD licenses and the MIT License. The GNU Library General Public License (as the LGPL was · Affero General Public License Both versions of the AGPL were designed to close a perceived application service provider "loophole" in the ordinary GPL, whereby using but not distributing the software, the copyleft provisions are not triggered. Each version differs from the version of the GNU GPL on which it is based in having an additional provision addressing use of · GNU Free Documentation License The GNU Free Documentation License is a copyleft license for free documentation, designed by the Free Software Foundation (FSF) for the GNU Project. It is similar to the GNU General Public License, giving readers the rights to copy, redistribute, and modify a work and requires all copies and derivatives to be available under the same license · GPL linking exception A GPL linking exception modifies the GNU General Public License to create a new, modified license. Such modified licenses enable software projects which provide 'library' code, that is software code which is designed to be used by (in technical terms, 'linked to') other software, to distribute the software code of the library itself under terms
Software GNU GNU (pronounced /ˈɡnuː/ ) is a Unix-like computer operating system developed by the GNU project, ultimately aiming to be a "complete Unix-compatible software system" composed wholly of free software. Development of GNU was initiated by Richard Stallman in 1983 and was the original focus of the Free Software Foundation (FSF), but no (variants GNU variants is a term used by the Free Software Foundation and others to refer to operating systems which use application software and system libraries from GNU, but use a kernel other than GNU Hurd) · Hurd · GNOME · Bash · GCC · GNU Emacs · glibc · Coreutils · Build system · GNUnet · Gnuzilla (IceCat) · Gnash · more...
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