::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
Science and maths 'vital for adults'Adults who lack basic science and maths skills risk being "bamboozled" and making bad decisions, according to a leading scientist.
Earth's trees number 'three trillion'A new report says there are three trillion trees on Earth, eight times as many as the previous best estimate.
Emissions 'far above' 2C targetResearchers say that global efforts to cut carbon are far short of what's needed to avert dangerous climate change.
Starfish-killing robot ready to testAn autonomous starfish-killing robot will be ready for field trials on the Great Barrier Reef this month, researchers say.
Climate event 'among strongest'This year's El Nino weather phenomenon could be one of the strongest on record according to the World Meteorological Organization.
Enigma of the trees that resist wildfiresScientists reveal the secrets behind the trees that can resist wildfires.
Maths helps prepare for new diseasesResearchers develop a mathematical model that can help determine the surveillance effort required to detect the arrival of costly invasive pathogens.
VIDEO: Wild forest lab studies immunityPatches of Kielder forest are being turned into a wild laboratories, to work out the environmental triggers for common diseases.
Viewpoint: Uncomfortable realities of big game huntingTrophy hunting has been the subject of much media attention, but is a blanket ban really the answer?
Seabirds 'blighted by plastic waste'Unless something is done to stem the flow of waste to the oceans, virtually every seabird will be ingesting plastic debris by 2050, say scientists.
Obama in plea for climate dealPresident Obama pushes for a global deal on cutting carbon emissions, saying it is time "to protect the one planet we've got while we still can".
Zen approach to Himalayan warmingThe Buddhist country of Bhutan has won plaudits for its approach to tackling climate change, says Matt McGrath.
Chris the sheep 'sets new record'An overgrown sheep dubbed Chris, found wandering near Australia's capital, sets an unofficial world record for the heaviest fleece.
'Oldest' message in a bottle foundA message in a bottle that washed up more than 108 years after it was thrown into the sea may be the world's oldest, a marine association says.
VIDEO: Slow-melting ice cream developedScientists develop a way to make ice cream smoother and less likely to melt so quickly on a hot summer day.
VIDEO: Neurologist Oliver Sacks dies aged 82Neurologist and author Oliver Sacks dies of cancer aged 82
VIDEO: Using science to combat floodingScientists at Newcastle University are going in search of floods, trying to learn what causes them so they can prevent future flash flooding.
VIDEO: Nasa team 'living on Mars' for a yearA team of Nasa recruits begins living near a barren volcano in Hawaii to simulate what life would be like on Mars.
Row over Caribbean dolphin parks planTurks and Caicos Islands debates marine mammal park
Aphantasia: A life without mental imagesA life without mental images
Has Defra shown badger culling works?Pallab Ghosh assesses the evidence for the decision to extend the cull of badgers to control TB in cattle.
The washing away of Cajun cultureWhy Cajun culture is being washed away
How a tiny backpack could solve the mystery of mass bee deathsThis could be how to solve the mystery of mass bee deaths





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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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