Chi Square Web

Statistic fundamentals of he Correspondence Analysis (CA) is presented in the CORRAN m-file you can find in this FEX author''s page. CA can be extended, a this m-file makes, to more than two categorical variables, called Multiple Correspondence Analysis (MCA).Karl Pearson (1913) developed the...

Other hypothesis used with the Mauchly's sphericity test is on the orthonormalized contrasts,H0: Cd-deOaoSC = s^2I , where C is any full-rank (p-1) x p matrix of orthonormal contrasts.A is the nonorthonormalized contrasts matrix.C = GMO(Ad-deOao) is a (p-1) doOCo p column-orthonormal matrix (by...

Doornik-Hansen (1994) introduce a multivariate version of the univariate omnibus test for normality of Shenton and Bowman (1977), based on the transformed skewness and kurtosis. Due that the skewness and kurtosis are not independently distributed and the kurtosis approaches very slowly to...


Platforms: Matlab

Calculates the Mardia's multivariate skewness and kurtosis coefficients as well as their corresponding statistical tests. For large sample size the multivariate skewness is asymptotically distributed as a Chi-square random variable; here it is corrected for small sample size. Likewise, the...


Platforms: Matlab

A statistical analysis used for count data is to compare the proportions of a binary outcome of interest for two or more groups.This m-file it is an implemented alternative to the Marascuillo's test and identifies significant pairwise contrasts that this last one does not. If the previously...


Platforms: Matlab

Grubb's outlier test can be used to remove one outlier (see deleteoutliers.m by Brett Schoelson). If you decide to remove this outlier, you might be tempted to run Grubbs' test again to see if there is a second outlier in your data. However, if you do this, you cannot use the same rejection...


Platforms: Matlab

On the literature there are available several tests of the multivariate normality (ca. 50). Among them is the graphic approach based on a chi-square quantile-quantile plot of the observations' squared Mahalanobis distances. Besides the graphic q-q approaching, in this file we proposes an...


Platforms: Matlab

From the covariance matrices (without data), groups size vector and a significance level (default = 0.05), the homogeneity covariance matrices are testing by the Box's M, it gives a Chi-square or F approximation in function of the groups sample-size.Outputs are the Box's M statistic,...


Platforms: Matlab

This m-file performs the Cochran's Q test for multi-way tables which each variable has two levels, that is, for 2x2...x2 tables. It is used to test the homogeneity of the one-dimensional margins. So, Cochran's Q test is a nonparametric test examining change in a dichotomous variable across more...


Platforms: Matlab

This m-file performs the Bowker's test for symmetry. It is an extension of the McNemar test to a KxK situation. There are now K response categories for the two dependent samples.The null hypothesis is that the probabilities in the square table satisfy symmetry or that there is no sifnificant...


Platforms: Matlab

Computes the interrelationships between two sets of variables made on the same objects without data. The canonical correlation is the maximum correlation between linear functions of the two vector variables. Linearity is important because the analysis is performed on the correlation matrix which...


Platforms: Matlab

From a total multivariate data matrix and a significance level, the homogeneity covariance matrices are testing by the Box's M, given a Chi-square or F approximation in function of the group sample-size.


Platforms: Matlab

Correspondence Analysis (CA) is a special case of Canonical Correlation Analysis (CCA), where one set of entries (categories rather than variables) is related to another set. Also, it can be seen as a special case of Principal Component Analysis (PCA), where it is used for tables consisting of...


Platforms: Matlab

This file performs the Fisher exact probability test for a table of frequency data cross-classified according to two categorical variables, each of which has two levels or subcategories (2x2). It is a non-parametric statistical test used to determine if there are nonrandom associations between...


Platforms: Matlab

AcaStat statistical software is an inexpensive and easy-to-use data analysis tool. Create and analyze crosstabulations, descriptive statistics, basic significance tests, and summary reports. Ideal for those who need a low-cost alternative for producing basic summary statistics at school or work....


Platforms: Mac

Web Builder is a WYSIWYG (What-You-See-Is-What-You-Get) program used to create web pages. WYSIWYG means that the finished page will display exactly the way it was designed. The program generates HTML (HyperText Markup Language) tags while you point and click on desired functions; you can create a...


Platforms: Windows

Web tiles are small, square or rectangular images that can be used as backgrounds in web pages or email stationery. In use, they're "tiled" together endlessly to create a continuous image which appears beneath the content of the web page (or email). By far the most popular web tiles are designed...


Platforms: Windows

DataMatrix CGI is a web application for two-dimensional matrix symbology containing dark and light square data modules. Examples: If you specify the following parameters: http://localhost/test/dmtxcgi.exe?data=HelloWorld&w=100&h=100&bcolor=ffff00&fcolor=0000ff "HelloWorld" will be encoded...


Platforms: *nix

This is an end to end example of how to use Builder JA (Java Builder) to create a full web application that utilizes data and WebFigures to display MATLAB Figurues on the Web in an interactive way.This example shows the "Magic Square" function in MATLAB where a user can specify the size of the...


Platforms: Matlab

irs number square is a small and nice educational software that shows the numbers up to 100 in a grid. It also can display the multiplication table. About Adobe AIR Adobe AIR runtime allows Adobe AIR applications to be deployed on computers and devices running the Linux operating system. In...


Platforms: *nix