::Free Statistics and Forecasting Software::

  Black&White | Blue Theme | Normal Fontsize | Increase Fontsize | Decrease Fontsize | Toggle underline
Secure website (HTTPS) | Donate to wessa.net

:: 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 reveals 'into Africa' migrationA 4,500-year-old African genome reveals how our ancient ancestors moved back and forth between continents.
Geology photo contest names winnersFrom Giant's Causeway to Lulworth Cove - the Geological Society of London announces the winners of its photo competition celebrating the 100 Great Geosites of the UK and Ireland.
'Sand pit' probes walking strategiesResearchers puff air through a box of sand to examine how lizards, crabs and robots cope with 'fluid' ground.
Probe captures Pluto's 'blue sky'The New Horizons mission returns its first colour image of Pluto's atmospheric hazes and shows them to have a blue tinge.
EU assesses insects-as-food risksThe European Food Safety Authority publishes its initial risk assessment of using insects as a source of protein for human consumption and animal feed.
Ancient recording of core's birthA reassessment of ancient rocks leads scientists to estimate that Earth's inner core started to form earlier than was previously thought, around 1.3 billion years ago.
Shackleton medals fetch £585,000A number of medals awarded to Antarctic explorer Sir Ernest Shackleton raise £585,000 at a London auction.
Physics probe sent to spaceportEurope's fundamental physics space mission, Lisa Pathfinder, arrives in French Guiana to prepare for its December Launch.
Ancient horse-like foetus discoveredThe 48-million-year-old fossilised remains of a horse foetus have been described by scientists.
World's corals threatened by bleachingCorals worldwide are at risk from a major episode of bleaching caused by natural currents and man-made climate change, scientists warm.
DNA repair wins chemistry NobelThe 2015 Nobel Prize in Chemistry is awarded for discoveries in DNA repair.
Fuel crisis threatens Nepal's forestsNepal's world-renowned community forests are threatened by a sudden rise in demand for firewood following a fuel crisis, officials say.
Croc maths question 'was challenging'A bamboozling question about a crocodile stalking its prey was one reason the pass mark for Higher maths had to be lowered, a report finds.
Elephants' low cancer rates explainedElephants have enhanced defences against cancer that can prevent tumours forming, say scientists.
VIDEO: Yorkshire's extinct rhinos revealedAncient bones from a North Yorkshire cave, including the remains of rhinos, bears and hyenas, are to be transformed into a digital museum.
VIDEO: Astronaut's out-of-this-world albumAstronaut Chris Hadfield talks about his new album of songs recorded while onboard the International Space Station
VIDEO: A future without coal-fired powerCoal was once considered king, but it is now seen as a dirty fuel and the government wants to eliminate coal-fired power stations within the next 15 years.
VIDEO: Huge waterspouts filmed in ChinaFootage of spectacular waterspouts filmed off the coast of Dalian, has been broadcast on Chinese TV.
VIDEO: Mysterious ripples found on nearby starNew images from the European Southern Observatory have revealed mysterious ripples around a star close to Earth.
VIDEO: The rare event threatening coral reefsScientists in the United States say the world's coral reefs are being attacked by a phenomenon that's only occurred twice before in recorded history.
VIDEO: The drone that can plant treesEngineers are hoping to use drones to plant in areas that have been deforested
VIDEO: Juggling fruit in space for scienceThe Russian space agency releases footage of cosmonauts juggling fruit in zero gravity aboard the International Space Station.
The reward for 'whale watching' on MarsWhale Rock becomes the linchpin in a story about water on early Mars
The creature with the key to immortality?Does this creature hold the key to immortality?
Neutrinos: 'Superheroes' of particle worldWhy neutrinos won the Nobel Prize
The rebirth of a natural treasureThe rebirth of Mozambique's natural treasure
Bloodhound Diary: The real deal1,000mph car makes its public debut
Work that won Nobel Prize for medicine 2015The work that won the 2015 Nobel Prize for medicine

Top | Output | References | History | Feedback
Delete history
Server DateModuleCommand
Sat, 10 Oct 2015 09:53:34 +0100Start of session-
Top | Output | References | History | Feedback

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

Comments, Feedback & Errors | Privacy Policy | Statistics Resources | Wessa.net Home

 © Wessa.Net 2002-2015  

Home Page
Equation Plotter
Time Series Analysis
Multiple Regression
Descriptive Statistics
Statistical Distributions
Hypothesis Testing
Simon Fraser University
Aston University

Academic citations
Computations Archive
Search Computations
R Project
About Wessa.net
Powered by Linux

Server status page
Any R Server
'Herman Ole Andreas Wold'
'Gwilym Jenkins'
'Sir Ronald Aylmer Fisher'
'George Udny Yule'
'Gertrude Mary Cox'
'Sir Maurice George Kendall'
Installed Packages

History list