::Free Statistics and Forecasting Software::

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:: Free Statistics Software (Calculator) - Web-enabled scientific services & applications ::

All rights reserved. The non-commercial (academic) use of this software is free of charge. The only thing that is asked in return is to cite this software when results are used in publications.

Wessa.net offers these software applications free of charge:

Descriptive Statistics SoftwareThis collection of Free Statistics Calculators offers a wide range of descriptive and explorative types of statistical measures and analysis: Central Tendency, Average, Mean, Median, Variability, Interquartile Range, Concentration, Lorenz Curve, Gini Coefficient, Skewness, Kurtosis, Quartiles, Percentiles, Notched Boxplot, Histogram, Correlation, Partial Correlation, Rank Correlation (Spearman and Kendall), Simple Regression, Kernel Density Estimation, Harrell-Davis Quantiles, Bivariate KDE, Correlation Matrix, Stem-and-leaf plot, Explorative Data Analysis
Regression SoftwareThis is a collection of Regression-based types of analysis for single and multiple equations: Multiple Regression Equations, Bias-Reduced Logistic Regression (Firth method), Recursive Partitioning (Classification & Regression Trees), Variance-based Structural Equation Modeling (Partial Least Squares - Path Modeling).
Statistical DistributionsFeatures Random Number Generators, PPCC Plots (incl. Tukey lambda), and Statistical Distribution Fitting Modules (Maximum Likelihood) for a series of important distributions: Beta, Inverted Beta, Cauchy 1, Cauchy (2 parameters), Chi, Chi Square (1 parameter), Chi Square (2 parameters), Erlang, Exponential, Fisher F, Gamma, Inverted Gamma, Gumbel, Laplace, Logistic, Lognormal, Normal, Pareto, Power, Rayleigh, r-Distribution, Rectangular (Uniform), Student t, Triangular, and Weibull.
Statistical Hypothesis Testing SoftwareOffers statistical testing of a variety of hypotheses: Population Mean, Mean (critical value, p-value, type II error, sample size), Skewness/Kurtosis, Quasi Random-Walk
Time Series Analysis (R modules)Performs Univariate Box-Jenkins ARIMA modeling, forecasting, and residual model checking. In future this module will replace the old versions based on C code.
Statistics Education at Simon Fraser University

This section contains various types of Statistics Software for Statistics Education that have been created by Larry Weldon at Simon Fraser University, Vancouver, Canada.
Statistics Education at Aston University

This section contains various types of Statistics Software for Statistics Education that have been created by Ian Holliday at Aston University, Birmingham, UK.
Mathematical Equation PlotterPlots mathematical equations, statistical distributions, derived functions, cumulative functions, and apply numerical integration. Equations can be formulated in algebraic form, for instance: y=exp(a*sin(x)+b). The equation is sent through an interpreter and the analysis and equation chart is generated (in .png format).
Time Series DatabaseUse this Database to gain access to thousands of time series about financial markets. Note: this application is also available from within our Scientific Forecasting Software.
R modulesAnyone can create, maintain, and publish R-based modules (subject to editorial acceptance) and make them freely available within the Wessa.net framework.

Multiple Regression Software (C module)Performs Multiple Regression Equation Modeling with the following features: Ordinary Least Squares Estimation, Heteroskedasticity tests, Autocorrelation tests, Misspecification tests, Multicollinearity tests, Regression Charts, ANOVA tables, Goodness of Fit, and much more.
Several types of regression will be available in future.

Scientific Forecasting Software (C modules)

Performs Univariate Box-Jenkins ARIMA modeling, forecasting, and various bootstrap simulation methods for the estimation of financial profit density functions according to the following strategies: Buy&Hold, Alexander's Filterrule, truncated Koyck lag-based MACD. Various types of time series analysis tools are available: (Partial) Auto Correlation Function, Spectral Analysis, Variance Reduction Matrix, Standard Deviation-Mean Plot, trimmed Skewness & Kurtosis, suspended rootogram displays, percentiles, concentration, histograms, foreward & backward running autocorrelation, ARMA parameter estimation, and much more.

Sample Size Software(sample size, sample accuracy, confidence interval)
Factor Analysis(Factor Analysis, Principal Components)
Clustering Software(Agglomerative Nesting, Hierarchical Clustering)
Reproducible ExamplesThis module provides access to interesting examples that have been published in articles or textbooks together with all the data and statistical software that is needed to reproduce them. All software is readily available online, and the source code of the underlying analysis can be viewed after successful completion.
Financial Calculators(currency decimal, currency fraction, present value, future value, Black-Scholes option prices, interest payment, principal payment, number of periods, effective interest, nominal interest, Quasi Random-Walk identification, trading performance statistics, etc...)

NEWS FEED from BBC News : Science and Nature
Eve the Jurassic sea monsterPiecing together the bare bones of a sea reptile that swam at the time of the dinosaurs.
DNA 'tape recorder' to trace cell historyResearchers invent a DNA "tape recorder" that can trace the family history of every cell in a body.
Zoo gorilla shot as boy falls into moatZoo officials shoot dead a gorilla after it grabbed a four-year-old boy who fell into its enclosure in the US city of Cincinnati.
Cooling technologies become red hotSainsbury's is trialling new food-cooling technologies that promise to be more eco-friendly than current alternatives.
Geologists revisit giant Zion landslideUS scientists produce their most precise date yet for the colossal landslide that shaped the big red canyon running through what is now Zion National Park.
Flexi-space room expansion completeA new, expandable "room" has been opened up on the International Space Station.
Australia removed from UN climate reportAll references to climate change's impact on World Heritage sites in Australia are removed from a UN report after a government request.
Solar Impulse lands in PennsylvaniaThe sun-powered aircraft Solar Impulse has landed in Lehigh Valley, Pennsylvania, after a near-17-hour flight.
Neanderthal stone structures discoveredResearchers investigating a cave in France have identified mysterious stone rings that were probably built by Neanderthals.
HS2 'over-priced' say transport expertsHS2 is an over-priced, gold-plated project and will fail in many of its objectives a group of transport experts warns.
Exxon takes 'small step' on climateShareholders at Exxon Mobil AGM reject most proposals but voted in favour of a resolution that could see a climate activist elected to the board in the future.
Contract to construct giant telescopeThe contract is signed that will lead to the construction of one of this century's key astronomical facilities - the European Extremely Large Telescope.
'Polar bear hybrid' shot in CanadaA possible grizzly-polar bear hybrid has been shot by a hunter in northern Canada.
Crayfish and worms may die out togetherA study finds that bizarre, tentacled worms which live attached to crayfish are at risk of extinction, alongside the crayfish themselves.
Navy investigates 'lost submarine find'The Royal Navy is investigating claims the wreckage of a British submarine lost during World War Two has been discovered off the coast of Sardinia.
Juries 'could enter virtual crime scenes'Virtual reality technology used in the gaming industry could be utilised to recreate crime scenes for jurors, researchers claim.
Cattle drugs 'could fuel climate change'Dosing farm animals with antibiotics increases greenhouse gas emissions from cow dung, research suggests.
Exxon 'has to change or die' on climateThe world's biggest publicly traded oil company faces a critical AGM under pressure from a broad coalition of shareholders on climate change.
Solar Impulse aims for PennsylvaniaThe sun-powered aircraft Solar Impulse takes off from Dayton, Ohio, on a 750km flight to Lehigh Valley in Pennsylvania.
VIDEO: Onboard camera captures rocket landingAn onboard camera has captured the successful landing of SpaceX's Falcon 9 rocket, returning from space after launching an Asian communications satellite.
VIDEO: Ice blocks make fridges less 'stupid'Roger Harrabin visits a factory in Wales that is using ice to make fridges more economical.
VIDEO: A haven for endangered water volesThe water vole has become Britain's most endangered mammal, but a project in Worcestershire is trying to reverse the decline.
VIDEO: Did Neanderthals create stone rings?Stone rings thought to be created by Neanderthals have been found in France
VIDEO: China's new deep sea submarineLook inside a life-size model of a submarine which the Chinese hope will take humans to the very bottom of the ocean - the Mariana Trench, in the Pacific.
VIDEO: Storm-chasers film Kansas tornadosA news crew has been filming tornados outside Dodge City in Kansas. At least two people were injured in severe storms.
VIDEO: Hunting universe's strangest particlesDeep underground, beneath Daya Bay in the south of China, scientists are hunting for the oddest particles in the cosmos - neutrinos.
Alma telescope peers into spaceAlma telescope peers into space from Chile
'Dinosaur crater' drill project successChicxulub drill project declared a success
The gene's still selfish: Dawkins' famous idea turns 40The scientist and author discusses his legacy - and giving up Twitter
China's science revolutionFive glimpses inside China's scientific revolution
Paradise lost in a tourism boomBeautiful places threatened by mass tourism
Bloodhound Diary: Riding four 'gyroscopes'The effects from riding four 'gyroscopes'

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To cite Wessa.net in publications use:
Wessa, P. (2016), Free Statistics Software, Office for Research Development and Education,
version 1.1.23-r7, URL http://www.wessa.net/

© All rights reserved. Academic license for non-commercial use only.
The free use of the scientific content, services, and applications in this website is granted for non commercial use only. In any case, the source (url) should always be clearly displayed. Under no circumstances are you allowed to reproduce, copy or redistribute the design, layout, or any content of this website (for commercial use) including any materials contained herein without the express written permission.

Information provided on this web site is provided "AS IS" without warranty of any kind, either express or implied, including, without limitation, warranties of merchantability, fitness for a particular purpose, and noninfringement. We use reasonable efforts to include accurate and timely information and periodically update the information, and software without notice. We make no warranties or representations as to the accuracy or completeness of such information (or software), and it assumes no liability or responsibility for errors or omissions in the content of this web site, or any software bugs in online applications. Your use of this web site is AT YOUR OWN RISK. Under no circumstances and under no legal theory shall we be liable to you or any other person for any direct, indirect, special, incidental, exemplary, or consequential damages arising from your access to, or use of, this web site.

Software Version : 1.1.23-r7
Algorithms & Software : Patrick Wessa, PhD
Server : www.wessa.net

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