::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
DNA secrets of Ice Age Europe unlockedGenetic analysis unlocks the secrets of Europe's Ice Age inhabitants.
Mars rover project slips to 2020As expected, the European and Russian space agencies have delayed the launch of their ExoMars robot rover by two years to 2020.
Solar Impulse heads for PhoenixThe zero-fuel aeroplane Solar Impulse sets out to cross the continental USA, flying out of California bound for Arizona.
Breast cancer genetic discovery hailedScientists say they now have a near-perfect picture of the genetic events that cause breast cancer, which they hope will unlock new ways of treating the disease.
Tim Peake drives remote robot on EarthUK astronaut Tim Peake controls a robot vehicle on Earth from the space station, simulating how humans could one day remotely command vehicles on other worlds.
Lizards share sleep patterns with humansScientists say sleep patterns previously thought exclusive to mammals and birds are also found in lizards.
Weasel shuts down Large Hadron ColliderThe Large Hadron Collider particle accelerator in Switzerland is offline after suffering a short circuit - caused by a weasel.
Kenyan call to stamp out ivory tradePresident Kenyatta of Kenya urges action to end Africa's illegal trade in ivory as he prepares to host a summit on saving elephants from extinction.
'Sleepless slugs' on rise, say expertsLast year's wet summer, followed by one of the warmest winters on record, has helped to create a generation of sleepless slugs, wildlife experts have warned.
Japan to abandon space satellite foreverJapan's space agency says it will abandon efforts to restore a multimillion dollar satellite sent to explore black holes, after it spun out of control.
New EU radar satellite takes first imageThe EU's newest Earth observation satellite, Sentinel-1b, has returned its first radar imagery - of Svalbard, the Norwegian archipelago.
Neonics 'not equally harmful' to beesThe largest field-study so far in to the group of pesticides called "neonicotinoids" has concluded that each acts differently on the brains of the bees.
Gene therapy reverses sight lossA genetic therapy improves the vision of some patients who would otherwise have gone blind.
Mars mission by 2018 says SpaceXBillionaire Elon Musk plans to send his Dragon spacecraft to Mars as early as 2018.
'Secret of youth' in ginger geneScientists say they have made a leap in knowing why some people retain their youthful looks while others age badly.
Volcano implicated in Maya upheavalScientists think they can now tie the disruption that hit Maya civilisation in the 6th Century to an eruption of the El Chichon volcano.
VIDEO: Helping hand for chilly owlsBarn owls can struggle to survive in cold, wet weather and as low temperatures persist people in Yorkshire are doing their best to give the birds a helping hand as Paul Murphy reports.
VIDEO: Tim Peake drives remote Mars roverUK astronaut Tim Peake has performed a challenging remote control experiment on the International Space Station.
VIDEO: Meet the decoys protecting tiny seabirdsConservationists have come up with a novel solution, using fake versions of the Little Tern, to try to attract the real ones to find suitable nesting spots.
VIDEO: Rescued circus lions to fly to South AfricaMore than 30 lions which have been rescued from circuses in Peru and Colombia are to be flown to a sanctuary in South Africa.
VIDEO: 'Fat' gorilla surprises zoo with babyA gorilla has given birth at Prague Zoo, without keepers noticing she was pregnant.
VIDEO: Gene therapy could reverse sight lossA pioneering new treatment is giving is new hope for those with macular degeneration, as Pallab Ghosh reports.
VIDEO: When will China get to Mars?China is due to announce more details about a mission to Mars.
VIDEO: Space station gets inflatable extensionAn experimental inflatable module has been attached to the International Space Station remotely by a Nasa ground control team.
VIDEO: The world's worst nuclear disasterThe aftermath of the Chernobyl explosion
What is the most expensive object on Earth?A new nuclear power station in the UK will be the most expensive thing ever built on the planet. True or false?
Bloodhound Diary: Planning for the roughest of ridesWhat's it going to be like to drive at 1,000mph?
Is world's greenest office also smart?The building is high tech but are the workers on board?





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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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