PSPP. GNU PSPP is a program for statistical analysis of sampled data. It is a free as in freedom replacement for the proprietary program SPSS, and appears very similar to it with a few exceptions. The most important of these exceptions are, that there are no “time bombs”; your copy of PSPP will not “expire” or deliberately stop working in the future. Neither are there any artificial limits on the number of cases or variables which you can use. There are no additional packages to purchase in order to get “advanced” functions; all functionality that PSPP currently supports is in the core package.

PSPP is a stable and reliable application. It can perform descriptive statistics, T-tests, anova, linear and logistic regression, measures of association, cluster analysis, reliability and factor analysis, non-parametric tests and more. A brief list of some of the PSPP's features follows below. Support for over 1 billion cases. Downloading PSPP Documentation Further information Getting involved Development. One-Way ANOVA Calculator. SISA allows you to do statistical analysis directly on the Internet. Interactive Statistical Calculation Pages. Author. Dr. Charles Zaiontz has a PhD in mathematics from Purdue University and has taught as an Assistant Professor at the University of South Florida as well as at Cattolica University (Milan and Piacenza) and St.

Xavier College (Milan). Most recently he was Chief Operating Officer and Head of Research at CREATE-NET, a telecommunications research institute in Trento, Italy. He also worked for many years at BBN, one of the most prestigious research institutes in the US, and widely credited with implementing the Arpanet and playing a leading role in creating the Internet. Dr. He grew up in New York City and lived in Indiana, Florida, Oregon and finally Boston, before moving to Europe 32 years ago where he has lived in London, England and northern Italy.

He is married to Prof. Free Qualitative Data Analysis Software | QDA Miner Lite | Provalis Research. SPSS Starter Kit. SPSS Starter Kit This page is intended for people who: These materials have been collected from various places on our website and have been ordered so that you can, in step-by-step fashion, develop the skills needed to conduct common analyses in SPSS. Although SPSS has a very nice point-and-click interface, we suggest that you learn to use SPSS syntax. Almost all procedures and operations in SPSS can be done either via point-and-click or syntax. While using the point-and-click interface may seem easier at first, you will quickly find that it makes documenting what you are doing very difficult. Please see our seminar on SPSS syntax for some tips on ways to ease yourself into using SPSS syntax. Getting familiar with SPSS Class notes with movies: There is no point in waiting to take an introductory class on how to use SPSS.

Getting familiar with the statistical procedures What statistical analysis should I use? Getting familiar with the output Going further. ViSta: The Visual Statistics System. The F-Ratio: The heart of ANOVA is analyzing the total variability into these two components, the mean square between and mean square within. Once we have analyzed the total variability into its two basic components we simply compare them. The comparison is made by computing the F-ratio. For independent-measures ANOVA the F-ratio has the following structure: or, using the vocabulary of ANOVA, Characteristics of the F-ratio The numerator and denominator of the ratio measure exactly the same variance when the null hypothesis is true.

Thus: when Ho is true, F is about 1.00. F-ratios are always positive, because the F-ratio is a ratio of two variances, and variances are always positive. Introduction to SPSS for data analysis: overview of SPSS. Getting Started with SPSS for Windows. Interactives archive: Physics and Math. Software. Regression Tools - Online Multiple Linear Regression. This page allows you to work out multiple linear regressions, also known as multilinear regressions or multiple linear least squares fittings. For the relation between several variables, it finds the linear function that properly fits a given set of data points. The result is not necessarily the best possible, but usually it is a very good one and further improvement posibilities are very small. In the case that the number of variables is equal to the number of data points an hyperplane containing all the points results. • Copy & Paste: You can copy and paste data directly from a spreadsheet or a tabulated data file in the box below.

Any character that cannot be part of a number -space, comma, tabulation...- is considered a column separator. . • Insert manually & See details: If you prefer you can insert all the points manually, for which you first have to specify the number of data points. Multiple Regression - Free Statistics and Forecasting Software (Calculators) v.1.1.23-r7. To cite Wessa.net in publications use:Wessa, P. (2014), Free Statistics Software, Office for Research Development and Education, version 1.1.23-r7, URL © 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. Software Version : 1.1.23-r7Algorithms & Software : Patrick Wessa, PhDServer : www.wessa.net. Two-way ANOVA test Calculator. Please fill in the number of first and second factor levels below at first. There must be between 2 and 10 levels for each of the two factors. Then click on the link below the text entry fields, which will create all the necessary textboxes. Each textbox is preceded by the label "Group a,b", where a and b are the level indices for the first factor and second factor respectively. There will be n_1 \times n_2 boxes, where n_1 is the number of first factor levels and n_2 is the number of second factor levels. Please click to add all the textboxes Simply click on the link near the top to add text boxes.

Select multiple single column CSV files to populate the text boxes by repeatedly pressing the Choose File button - there must be one distinct (and differently named) file for each text box i.e. one file per group. There is a graph at the bottom which will display means for all the groups, once the calculate button is pressed. Results pending... One-Way ANOVA. Minitab. Atomic Training. Graphpad quickCalcs. The Free Statistics Calculators Website - Home. Free Statistical Software - FreeStatistics.info. WikiCalc Beta Test Home. WikiCalc is currently released in late Beta test. This means that it is not fully tested, has bugs, but has all of the features that will be in the 1.0 release. It is quite useful in its own right and is able to create, publish, and maintain a wide variety of web pages. For example, this page and many of the ones it links to about wikiCalc were created with the wikiCalc Beta. (The graphical design comes from a CSS file and the side bar is in a simple custom template.

The Beta release is available for use on Windows, Mac, Linux/Unix, and other platforms that can run the Perl language. The program is written by Dan Bricklin (me) and is available under a GPL 2.0 license. This version includes a "Demonstration Setup" option to get you up to speed quickly if you just want to see what a browser-based spreadsheet feels like.

WikiCalc is currently aimed at users who are comfortable figuring out how best to use a new tool. Online Statistics Calculator, basic math statistics, Tutorial. Wolfram|Alpha Examples: Statistics & Data Analysis. List of statistical packages. Statistical Science Web: Free Statistical Programs. Statistical Computing Software for Population Analysis. A directory of software sources for analysing animal abundance. Gordon's choices: BUGS. Bayesian inference using Gibbs sampling. Other packages: ADE-4. Free Statistical Software. Software. One can argue that there is a tradeoff in statistical software between its "ease of learning" and its "power". Typically, those packages that are easy to learn are menu-driven and point-and-click driven. Some even have features designed soley for pedagogical purposes. On the other hand, other packages are designed to provide a great number of powerful and fast statistical tools as well as data management capabilities.

Warning: this page is by no means intended to be comprehensive. Merely a reflection of my own experience. High Scorers on the "Ease of Use" scale: Fathom -- this is predominantly a teaching tool, but in recent years has been expanded to included multiple regression and other useful tools. DataDesk -- this probably wins on both the "Ease" and "Power" scales. DataDesk can also be bundled with ActivStats, in which case it becomes a fairly complete textbook/software package. Tinkerplots -- I'm not sure whether this is easy to use or not. High Scorers on the "Power" scale: Universität Düsseldorf: G*Power. Statistics With Excel? Excel is available to many people as part of Microsoft Office. People often use Excel as their everyday statistics software because they have already purchased it. Excel’s limitations, and its errors, make this a very questionable practice for scientific applications.

For business applications where questions might be simpler and precision not as necessary, Excel may be just fine. Below are some of the concerns with using Excel for statistics that are recorded in journals, on the web, and from personal experience. References for more detail are listed at the bottom of this page. Some advice from others:“Meanwhile, researchers should continue to avoid using the statistical functions in Excel 2007 for any scientific purpose.” - Yalta (2008), ref 1 below “... it is not safe to assume that Microsoft Excel’s statistical procedures give the correct answer.

"If you need to perform analysis of variance, avoid using Excel, unless you are dealing with extremely simple problems 2. 3. 4. 5. 6. EXCEL 2007: Descriptive Statistics for Univariate Data. EXCEL 2007: Descriptive Statistics A. Colin Cameron, Dept. of Economics, Univ. of Calif. - Davis This January 2009 help sheet gives information on how to obtain Descriptive statistics for data using Data Analysis Add-in Statistics using individual function commands. We consider the following gasoline price data (cents per gallon) These data are in gasolinepricedata.csv [Alternatively type in cells A1:A10 the ten values 117.9, 119.9, 115.9, 121.9, 121.9, 118.9, 118.9, 123.9, 125.9, 113.9. and then insert a header GAS PRICE in new row 1] .

To obtain various descriptive statistics Choose the Data Tab and the Analysis Group and Click on Data Analysis. Clicking OK yields the dialog box Choose input range as A1:A11 (by selecting this range with the mouse or by typing this in) Select labels in First rows (assuming labels have been provided) For output range choose e.g. cell C1 (choose a location where two adjacent columns have no data) Select summary statistics. Selecting OK yields the output. WinIDAMS - FreeStatistics. Free Statistics Programs and Materials by Bill Miller. MINITAB Project 4. PURPOSE - to use MINITAB to determine the sample meandetermine the sample standard deviation and the sample variance determine the sample mediandetermine the sample mode for ungrouped datadetermine the sample quartiles investigate some properties of sample statisticsinvestigate consistent estimatorsinvestigate unbiased estimators The sample mean for a sample of size n is obtained by adding together the values in the data set and dividing by the sample size n.

The population mean for a finite population of size N is obtained by adding together the values in the data set and dividing by the population size N. Notation: The standard notation for the sample mean is given by , read as "x-bar".Notation: The standard notation for the population mean is given by the Greek symbol m, read as "mu".Formula: The standard formula that is used to compute the sample mean is Distribution with Small Variability The larger the sample variance the more spread out the data values will be about the mean. .

AnyDice. PSPP. GNU PSPP is a program for statistical analysis of sampled data. It is a Free replacement for the proprietary program SPSS, and appears very similar to it with a few exceptions. The most important of these exceptions are, that there are no “time bombs”; your copy of PSPP will not “expire” or deliberately stop working in the future. Neither are there any artificial limits on the number of cases or variables which you can use. There are no additional packages to purchase in order to get “advanced” functions; all functionality that PSPP currently supports is in the core package. PSPP is a stable and reliable application. It can perform descriptive statistics, T-tests, anova, linear and logistic regression, measures of association, cluster analysis, reliability and factor analysis, non-parametric tests and more. A brief list of some of the PSPP's features follows below. Support for over 1 billion cases. Downloading PSPP There are some additional ways you can download or otherwise obtain PSPP.

Statistical Science Web: Free Statistical Programs. Home - BrightStat Statistics made easy. Salstat-statistics-package-2 - statistical package. Para español [Home_es Página principal] Description Salstat2 is an statistical package written in python and designed for the end user It has a graphical user interface and also it is scriptable, It's multiplatform, It has a graphic system inherited from matplotlib, It allows you to use different libraries like numpy - for numerical calculations, it also lets you to interact with Microsoft Excel (R) by using a com client under windows(R) platform and finally you can create your own dialogs by using the interactive shell or the script panel.

News 21-dec-2013: We will incorpore a frame to manage the pivot class since v2.2 alpha3 19-dec-2013: The easy dialog displays in a better way by using a flexgrid; Also we have reached 5900 downloads from different sources. 26-oct-2013: Added some video tutorials 26-oct-2013: We have reached 4699 downloads from different sources. 09-sep-2013:Salstat2 v2.2 alpha 2 is available here 08-Sep-2013:We have rached 3699 downloads! Statistical functions available. Qualitative Data Analysis Software. The Comprehensive R Archive Network.

Announcing Statistics with Interactive R Learning Software Environment.