::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
What is the point of the Large Hadron Collider?David Shukman explores the justifications for the £4bn "atom smasher" buried under Geneva.
Duo begin year-long space tripUS astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko arrive for a 12-month tour of duty on the International Space Station.
Graphene light bulb set for shopsA light bulb made with graphene - said by its UK developers to be the first commercially viable consumer product using the super-strong carbon - is to go on sale later this year.
Greens ‘want 1% of GDP for science’A pledge by the Greens to double science funding contrasts with the statements offered by five other party leaders, answering a call to set out their policies on science.
Polar ice shelf thinning speeds upEighteen years of satellite data reveal an acceleration in the thinning of many of Antarctica's floating ice shelves.
Dark matter flits through collisionsA long-running study shows dark matter coasts unscathed through galactic collisions, betraying a ghostly lack of interaction with the known Universe.
River health revealed in 'shocking' figuresJust 17% of England's rivers are judged to be in good health, according to "shocking" Environment Agency figures.
'Cat litter mix' closed nuclear siteA team of experts says a mixture that included organic cat litter forced the closure of the only underground nuclear waste repository in the US.
DNA of 'an entire nation' assessedThe genetic code of "an entire nation" has effectively been deduced, say researchers in Iceland.
Drones bounce back from collisionsResearchers in the US copy bird and bat wings to build a drone that can rebound and recover from mid-air collisions.
Getting ready for the mission to HellEurope and America are building two satellites to study the Sun that will venture closer to the solar inferno than any previous missions.
Bloodhound car has engine fittingThe Bloodhound Super Sonic Car has a fitting with the Rolls-Royce jet engine it will use to try to break the world land speed record.
House sparrow rule roost in ScotlandHouse sparrows are the most commonly spotted bird in gardens in Scotland, according to an RSPB survey.
Short circuit delays LHC restartThe restart of the Large Hadron Collider hits a delay, after a short circuit is detected in one of its powerful electromagnets.
Swimmer has Russian Ross Sea talksThe record-breaking endurance swimmer Lewis Pugh discusses the possibility of an Antarctic Ross Sea marine reserve with the Russians.
Ramakrishnan to lead Royal SocietyNobel-winning structural biologist Venki Ramakrishnan is elected to become the next president of the Royal Society.
Tiger-tagging app to boost trackingA new iPad app is asking users to "tag" tigers in images gathered from the internet, to help researchers with counting and tracking the animals.
Europe drops asteroid sampling ideaEurope will not be mounting a sample-return mission to an asteroid, having rejected the MarcoPolo concept at the third time of asking.
Ministers challenged over CO2 cutsThe UK government’s claim that the country leads the world in cuts of carbon emissions is challenged by researchers at Leeds University.
Huge marine reserve for PitcairnThe UK government is to establish the largest marine reserve in the world around the Pitcairn Islands in the Pacific.
Mercury pollution risk to Arctic gullMercury pollution has risen nearly 50-fold in the feathers of a gull that feeds and breeds in the Arctic, say scientists.
Tidal lagoon 'negotiations open'Negotiations are opening on a £1bn tidal lagoon scheme in Swansea as the chancellor gives his Budget speech in the House of Commons.
VIDEO: A year in space: Soyuz docks at ISSA Russian Soyuz spacecraft has docked at the International Space Station carrying three astronauts, two of whom are due to spend a record 12 months there.
VIDEO: Eels journey from Bermuda and backMillions of eels have been arriving in the south-west of England having travelled thousands of miles from the Sargasso Sea near Bermuda.
VIDEO: The drone wings that bounce backResearchers in the US copy bird and bat wings to build a drone that can rebound and recover after mid-air collisions.
VIDEO: How robotic hand uses bio-signalsDavid Shukman looks at work being done at the Edinburgh Centre for Robotics, as the government pushes for more investment and co-operation in the field.
VIDEO: Solar 'could provide 4% of UK electricity'Solar power could provide up to 4% of the UK's electricity by the end of the decade, the government has said.
VIDEO: Orangutan rescued from chicken coopBudi, a baby orangutan who was rescued after being kept for months in a chicken cage in West Borneo, has made a remarkable recovery.
VIDEO: Does your pet have 'separation anxiety'?Vets are warning that a growing number of dogs and other pets are suffering from separation anxiety as peoples' working habits change.
VIDEO: Solar eclipse: 90 second explainerBBC News explains Friday's rare celestial event and how you can observe it safely - in 90 seconds.
Where does my personality fit in?What does where you live say about you?
What drives people to murder-suicide?What drives people to murder-suicide?
China's 'magic bunny' goes viralChina's endangered Ili Pika goes viral
What are the Designs of the Year?Weird and wonderful entries vie for Design of the Year





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To cite Wessa.net in publications use:
Wessa, P. (2015), 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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