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Free Statistical Software

Free Statistical Software
Updated 02/13/2015 -- added MaxStat statistical software This page contains links to free software packages that you can download and install on your computer for stand-alone (offline, non-Internet) computing. They are listed below, under the following general headings: General Packages: support a wide variety of statistical analyses Subset Packages: deal with a specific area of analysis, or a limited set of tests Curve Fitting and Modeling: to handle complex, nonlinear models and systems Biostatistics and Epidemiology: especially useful in the life sciences Surveys, Testing and Measurement: especially useful in the business and social sciences Excel Spreadsheets and Add-ins: you need a recent version of Excel Programming Languages and Subroutine Libraries: customized for statistical calculations; you need to learn the appropriate syntax Scripts and Macros: for scriptable packages, like SAS, SPSS, R, etc. Curve-fitting & Modeling: Biostatistics and Epidemiology: Miscellaneous:

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Design of Experiments (DOE) Tutorial Design of experiments (DOE) is a powerful tool that can be used in a variety of experimental situations. DOE allows for multiple input factors to be manipulated determining their effect on a desired output (response). By manipulating multiple inputs at the same time, DOE can identify important interactions that may be missed when experimenting with one factor at a time.

Qualrus - The Intelligent Qualitative Analysis Program Qualrus is an innovative qualitative data analysis tool that helps you manage unstructured data. Use it to analyze interviews, organize field notes, measure survey responses & more... or download the free demo Fast, accurate codingQualrus learns your coding trends and offers relevant suggestions as you go. See your data clearlyVisual semantic network display helps you visualize relationships among codes.

 Recovery: Overview The metal after cold working has raised its internal energy and is therefore in a metastable, high energy state. It will try and lower its internal energy. In most cases it needs some external agent to help it to lower its internal energy. Recovery is the earliest onset of re-arrangement of crystal defects in the cold worked microstructure at elevated temperature, where some restoration of the original structure and properties may occur through annihilation of point defects and dislocations and, spatial re-arrangement of dislocations. Regression, ANOVA, and general statistics software for Macintosh computers (Macs) (Updated July 2014 with Salstat). Also see: G*Power Configurations Available: Older versions: 680x0; 680x0+FPU; PowerPC native; OS X (Universal Binary); Windows and DOS Current Version: 3.17 / requires OS 10.6 or newer Listing updated: 7/2013 (program updated 2013)

Exploratory data analysis In statistics, exploratory data analysis (EDA) is an approach to analyzing data sets to summarize their main characteristics, often with visual methods. A statistical model can be used or not, but primarily EDA is for seeing what the data can tell us beyond the formal modeling or hypothesis testing task. Exploratory data analysis was promoted by John Tukey to encourage statisticians to explore the data, and possibly formulate hypotheses that could lead to new data collection and experiments. EDA is different from initial data analysis (IDA),[1] which focuses more narrowly on checking assumptions required for model fitting and hypothesis testing, and handling missing values and making transformations of variables as needed. EDA encompasses IDA.

Social Network Analysis Social network analysis [SNA] is the mapping and measuring of relationships and flows between people, groups, organizations, computers, URLs, and other connected information/knowledge entities. The nodes in the network are the people and groups while the links show relationships or flows between the nodes. SNA provides both a visual and a mathematical analysis of human relationships. Management consultants use this methodology with their business clients and call it Organizational Network Analysis [ONA]. ONA allows you to x-ray your organization and reveal the managerial nervous system that connects everything. To understand networks and their participants, we evaluate the location and grouping of actors in the network.

Define and solve a problem by using Solver Solver is part of a suite of commands sometimes called what-if analysis (what-if analysis: A process of changing the values in cells to see how those changes affect the outcome of formulas on the worksheet. For example, varying the interest rate that is used in an amortization table to determine the amount of the payments.) tools. With Solver, you can find an optimal (maximum or minimum) value for a formula (formula: A sequence of values, cell references, names, functions, or operators in a cell that together produce a new value. A formula always begins with an equal sign (=).) in one cell — called the objective cell — subject to constraints, or limits, on the values of other formula cells on a worksheet. Solver works with a group of cells, called decision variables or simply variable cells, that participate in computing the formulas in the objective and constraint cells. In this article

Future Climate for Africa (FCFA) Climate plays a significant role in the lives of many people in Africa; the majority of livelihoods of African people depend on rain-fed agriculture and in some areas, water resources are increasingly stressed. Sub-Saharan Africa is the only region where vulnerability to weather extremes is rising, and the intensity of climate hazards is expected to rise over the coming decades (IPCC, 2013)[1]. Without climate risk management and adaptation, the progress made against the Millennium Development Goals will increasingly come under threat in Africa (OECD, 2009)[2].

What Can Classical Chinese Poetry Teach Us About Graphical Analysis? - Statistics and Quality Data Analysis A famous classical Chinese poem from the Song dynasty describes the views of a mist-covered mountain called Lushan. The poem was inscribed on the wall of a Buddhist monastery by Su Shi, a renowned poet, artist, and calligrapher of the 11th century. Deceptively simple, the poem captures the illusory nature of human perception. Intelligent Archive / Centre for Literary and Linguistic Computing / Research Institutes, Centres & Groups / Research / Humanities and Social Science / Schools Developed at the Centre for Literary and Linguistic Computing , University of Newcastle, Australia Hugh Craig R Whipp, Michael Ralston Introduction Excel Solver - Easy Excel Tutorial Load the Solver Add-in | Formulate the Model | Trial and Error | Solve the Model Excel includes a tool called solver that uses techniques from the operations research to find optimal solutions for all kind of decision problems. Load the Solver Add-in

worldpoliticsreview Observers of China’s engagement with Africa often assume that Africa is passive in the relationship. A look at Mozambique, Zimbabwe and South Africa shows that the reality is more complicated: Chinese actors often try to partially adapt to specific African systems, with varying degrees of success. Chinese investment and engagement now touches almost every aspect of Africa’s economy, including infrastructure, transport and logistics, trade, manufacture, agriculture, telecommunications and, of course, resource extraction. Because of the vastness of this engagement, commentators frequently fall back on catchall concepts, including an assumption that Africa is essentially passive in this relationship. The reality is much more complicated. Instead of simply imposing Chinese approaches on African realities, Chinese actors frequently try to attain their goals by partially adapting to specific African systems, with varying degrees of success.