Best regression software for free download

Add Statistics, Discrete Probability, Standard Probability Distributions, Hypothesis Testing, Correlation and Linear Regression functionality to your .NET, COM, and XML Web service Applications.
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Graphing, curve fitting and calculating software. Graphs Cartesian, polar and parametric functions, graphs of tables, implicit functions and inequalities. Calculus features: regression analysis, derivatives, tangents, normals and more.
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FindGraph is a comprehensive, feature-rich graph editor, and a curve-fitting and digitizing tool for engineers, scientists and business. Discover the model that best describes your data.
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StatPlus 2006 is a powerful and flexible software solution that processes data to perform statistical analysis. Big discounts are available in November.
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Add Statistics, Discrete Probability, Standard Probability Distributions, Hypothesis Testing, Correlation and Linear Regression functionality to your .NET, COM, and XML Web service Applications.

Statistics Module
Incorporates topic from data presentation (incl. standard, relative and cumulative frequency tables), Basic Statistics (incl. measure of centrality, dispersion and relative location) and Grouped Data (incl. Sample Mean, Variance and Standard Deviation

Discrete Probability Module
Encapsulates the probabilistic study of finite set of events (i.e. discrete probability) and experiments with a finite number of outcomes (i.e. discrete random variables). Including: probability measures, union/intersection law, conditionals/complementary probability; cumulative distribution functions, mean/variance/expected return of Random Variable.

Correlation and Regression Module
Allows the user to investigate relationships between two variables. These finding can be used to predict one variable from the given values of other variables. We cover linear (Spearman's, t-test, z-transform) and rank (Spearman's, Kendall's) correlation, linear regression and conditional means.

Standard Probability Distributions Module
This module assists in the development of applications that incorporate the Binomial, Poisson, Normal, Lognormal, Pareto, Uniform, Hypergeometric,Weibull and Exponential probability distributions. The PDF, CPDF and inverse, mean, variance, Skewness and Kurtosis, random number generators are implemented where appropriate and/or their approximations.

Confidence Intervals and Hypothesis Testing Module
Presents two aspects of inferential statistics known as confidence intervals and hypothesis testing.

This product also has the following technology aspects:

3-in-1: .NET, COM, and XML Web services - 3 DLLs, 3 API Docs,...
Extensive Client Examples (C#, VB, C++,...)
ADO Mediator
Compatible Containers (VS, VS.NET, Office, C++Builder, Delphi)

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With StatPlus 2007, one gets a robust suite of statistics tools and graphical analysis methods that are easily accessed though a simple and straightforward interface. The range of possible applications of StatPlus 2007 is virtually unlimited - sociology, financial analysis, biostatistics, economics, insurance industry, healthcare and clinical research, probability calculations for lotteries and gambling operations - to name just a few fields where the program is already being extensively used. While StatPlus 2007 is a "heavy-duty" professional statistical analysis tool, the interface is so simple that even people who have no knowledge of statistics are capable of processing data, provided they know how to use PC and clear instructions are given. This frees up intellectual urces for analyzing the results, rather than agonizing over who and how processed the data, and if any mistakes were made in the process.
Statistical features:
Basic statistics:descriptive statistics,normality tests,
T-Test/,Fisher F-test,
correlation coefficients (Pearson,Fechner),covariation
ANOVA (MANOVA,GLM, Latin and Greco-latin squares analysis)
Nonparametric statistics: Tables Analysis
chi-square test,
rank correlations (Kendall Tau, Spearman R, etc.),
comparing independent samples (Mann-Whitney U, Kolmogorov-Smirnov, Rosenbaum, Wald-Wolfowitz Runs Tests,Kruskal-Wallis ANOVA,...)
comparing dependent samples (Wilcoxon Test, Sign Test, Friedman ANOVA, Kendall's Concordance)
Cochran Q Test
Regression: Linear, polynomial, logistic, stepwise and Cox regression
Survival Analysis: Probit-analysis, Cox regression
Time series analysis:Moving Average, Auto Correlation and Partial AC, etc.
Powerful data processor (from sampling up to special transformations)
Spreadsheet features :
Reads Microsoft Excel/StatSoft Statistica/SPSS
Charts - histograms, bars, areas, point-graphs, pies...
Formulas

Students and academic discounts.
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UltimaCalc is a collection of mathematical tools wrapped up in one program, for use by scientists, engineers and students. The main window is a calculator that accepts mathematical expressions as plain text and evaluates them to 38 digit precision.
UltimaCalc can remain always ready for use. The use of text input means that this window can be small enough to remain open at all times without blocking the view of other windows. This window can be partially transparent when inactive, so you can read documents open underneath it.
A major feature of UltimaCalc Professional is its Symbolic Algebra module: Simplify expressions, differentiate them. Integrate a wide range of expressions, and see how the result was obtained. Find Taylor series. Factorise polynomials, divide one polynomial by another or find their GCDs.
Analyse a set of measurements, or approximate complicated functions with simpler ones. Use a variety of methods to fit lines to data, plotting the result. Calculate linear regression, or use an absolute deviation fit to minimise the distorting effects of outliers. Perform a multivariate linear regression when one variable is a linear function of several others. Fit polynomials and other non-linear expressions to the data.
The Standard Deviation tool calculates the mean, median, standard deviation, skewness, etc of a data set.
Other tools solve simultaneous linear or non-linear equations; find the values of parameters that minimise the value of an arbitrary expression; find roots of polynomials up to tenth order; or solve triangles.
Plot arbitrary functions. Specify starting and ending conditions and how variables X and Y change at each step. Combine up to 8 plots.
Save your results: the calculator window and most special tools can record all calculations in a plain text file. Most special tools can also save their data along with notes to a calculation file future reference. All graphs and plots can be saved as image files in a variety of formats.
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The Web browser is probably the most frequently used software today, and many tasks are highly repetitious. Internet Macros relieves the repetition of checking on the same sites every day, remembering passwords and filling out web forms. It is the only web form filler, that can automatically fill web forms that stretch over several pages. Passwords are stored securely with 256-Bit AES encryption. Web professional can use the software for functional testing and regression web testing of web applications. It can also be used to automate web data extraction, for example online stock quotes or web store prices.
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The Web browser is probably the most frequently used software today, and many tasks are highly repetitious. iMacros relieves the repetition of checking on the same sites every day, remembering passwords and filling out web forms or doing web screen scraping for data extraction. It is the only web form filler, that can automatically fill web forms that stretch over several pages. Passwords are stored securely with 256-Bit AES encryption. Web professional can use the software for functional testing and regression web testing of web applications. It can also be used to automate web data extraction, for example online stock quotes or web store prices.
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Offers functionality from Basic Statistics, Discrete Probability, Standard Probability Distributions, Hypothesis Testing, Correlation and Linear Regression.

Statistics Module
The Statistics module incorporates evaluation procedures of standard quantitative measures of centrality (mean) and dispersion of (discrete) numerical sets. This module incorporates weighted averages, geometric mean, Inter-Quartile range, mean and standard deviation, sample variance and the coefficient of variation.

Discrete Probability Module
The Discrete Probability module encapsulates the foundations of discrete probability and discrete probability distributions. This component includes the addition law, conditional probability, cumulative distribution function, mean and variance of a distribution, expected values, covariance and simplification of expressions involving random variables.

Correlation and Regression Module
Allows the user to investigate relationships between two variables. These finding can be used to predict one variable from the given values of other variables. We cover linear (Spearman's, t-test, z-transform) and rank (Spearman's, Kendall's) correlation, linear regression and conditional means.

Standard Probability Distributions Module
This module assists in the development of applications that incorporate the Binomial, Poisson, Normal, Lognormal, Pareto, Uniform, Hypergeometric and Exponential probability distributions. The probability density function, cumulative distribution function and inverse, mean, variance, Skewness and Kurtosis are implemented where appropriate and/or their approximations for each distribution. We also offer methods which randomly generate numbers from a given distribution.

Confidence Intervals and Hypothesis Testing Module
Within this component we present two aspects of inferential statistics known as confidence intervals and hypothesis testing.
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No need to carry a mainframe computer to perform a complex statistical analysis when you visit a remote lab. Even a notebook computer is no longer necessary with StatPlus Portable 2007. You only need a light and extremely compact USB flash drive. Plug it into any PC in the lab, and get your customary workplace in a matter of minutes!
Have the full power of a professionally developed and precise statistical package always with you. Perform a statistical analysis on-the-fly without carrying a powerful, bulky computer with you all the time. This portable version is able to run from a flash memory stick, and does not require installation to the host PC.
Despite its light designation, StatPlus Portable 2007 is a fully featured, powerful data analysis product. It performs all types of analysis, from very basics to complex procedures such as GLM ANOVA, non-parametric and regression analysis, Probit analysis and Latin squares analysis.
Get consistent, repeatable, ISO compliant results every time you perform an analysis. StatPlus is fully standardized and complies with the strict ISO standards such as ISO2602:1980, ISO 2854:1976, and ISO 3207:1975. Import and export to popular products such as Microsoft Excel and StatSoft Statistica makes StatPlus even more compatible.
Statistical analysis tools such as StatPlus are not for everyone. Heavy-duty packages carry high costs and steep learning curves. With StatPlus you can forget about the learning curve thanks to its intuitive, spreadsheet-like user interface that is as easy to use as MS Excel.
Are you working in a lab or studying for your PhD? With its highly affordable price tag and available student and academic discounts, StatPlus Portable 2007 makes a perfect tool for industrial workers as well as university students and teachers.
Download your free evaluation copy, and get a complete statistical package at a fraction of the price of the bigger counterparts!
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BioStat - user-friendly biology and medicine oriented statistical software. With BioStat 2007, one gets a robust suite of statistics tools and graphical analysis methods that are easily accessed though a simple and straightforward interface. While BioStat 2007 is a “heavy-duty” biology and medicine oriented professional statistical analysis tool, the interface is so simple that even people who have no knowledge of statistics are capable of processing data, provided they know how to use PC and clear instructions are given. This frees up intellectual resources for analyzing the results, rather than agonizing over who and how processed the data, and if any mistakes were made in the process.
Promo price.
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UltimaCalc is a scientific and mathematical calculator designed to occupy minimum screen area, making it immediately available for use. UltimaCalc can stay on top of other windows. Type a calculation as plain text, evaluate it, maybe edit it and re-calculate. Has a comprehensive context-sensitive help system.
Calculates to 38 digit precision. The display can be limited to just 8, 12 or 16 digits, and digits grouped for readability. Two 'scientific' view modes show numbers always in exponent format. The 'engineering' mode uses suffixes such as k (kilo) and M (mega). View results in hexadecimal and as ratios.
Functions available include logarithms to base 2, exp, two-argument inverse tangent; cube root (even of negative numbers); factorials, combinations, permutations, powers, modulus, GCD. Also floor and ceiling functions, absolute value, min, max, extract the fractional part of a number. Calculate the slope of a line given its end points. Even calculate definite integrals.
Define your own functions and constants, saved as a plain text file.
Find the date of Easter. Calculate future or past dates. Julian day numbers.
Calculate the mean, median and standard deviation of a sample and its population.
Create bar, line, pie charts. Add title, subtitle, labels. Adjust the layout, choose colours and hatching, save as an image.
Regression: Plot a scatter chart and regression line. Fit a polynomial to data. Analyse the effects of multiple variables on data. Absolute deviation fit minimises the effects of outlying values.
Plot functions: Specify starting and ending conditions and how variables change. Choose axis locations. Combine multiple plots. Save as an image.
Solve triangles: Given one side and two other facts, calculate the unknowns. View the result graphically.
Solve Simultaneous Linear Equations, and do Navigational calculations.
Log calculations to a text file, or copy and paste into other programs. Save specialised calculations with notes in data files.
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vTest is an automated functional and regression testing tool for web applications. It incorporates record, verify, playback and reporting capabilities. All popular Internet technologies such as HTTP, HTTPS/SSL, JavaScript, DHTML, ActiveX, Java and Flash are supported. vTest also supports all major web application frameworks including ASP, ASP.NET, Java Servlets and JSP, PHP and Perl/CGI.

vTest allows you to record and test your entire application in minutes by simply pointing and clicking on your Web application. Without any programming, all objects are automatically captured and recorded as a graphical script which shows the steps in your script in the form of an icon-based tree. For those users who wish to use scripting, vTest uses JavaScript as the scripting language and provides a comprehensive JavaScript API that you can use to create customized test scripts.

vTest creates scripts that adapt very well when your application's user interface changes. Most of the competition creates scripts that simply use the object name/ID to identify an object in your application. vTest uses a sophisticated object identification algorithm to identify objects in your application. This allows vTest scripts to adapt very well to changes in an application's user interface.

Benefits:
* Automate functional and regression testing tasks and thus reduce time-to-market
* Enhance the efficiency of quality assurance engineers by allowing them to devote less time to manual testing and more time to test design
* Maximize reliability and robustness by providing the capability to run tests on demand or according to a set schedule without the need for any user intervention
* Does not require a programming background. For those users who wish to use their programming skills, vTest uses the industry standard JavaScript language
* Manage product evolution effectively by generating easily modifiable tests
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Least Cubic Method is a new method for data regression analyse , it expanded Least Square Method, According to the principle, this program can be used to work out single factor linear data regression, multi factors linear data regression, single factor non-linear data regression, and multifactors non-linear data regression.
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Programmable scientific and technical graphics optimized for automation of test and measurement systems, data acquisition and post-process. Especially suitable for scientists who would like to make high-performance, precise measurements in the experimental research. Features include powerful visual tools (graphic editor, plot digitizer, base line subtractor), wide set of numeric and symbolic calculations (integration, differentiation, smoothing, etc), linear and nonlinear NLSF (Levenberg-Marquardt) regression analysis, configurable user interface and more. You can visualize, edit and analyze data produced by any instruments with RS-232 interface or another numerical data sources. Embedded ActiveX-compatible scripting environment allows you easily add new custom operations and integrate this software with popular desktop applications.

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