Homogeneity

GlobalTrends- Homogeneity tests for multiple seasons and stations. This function will test for trends when seasonality is present and over multiple observation stations, all of which are Chi-square statistics. There are so many statistical tests being done, this function is more like a script or... Platforms: Matlab

COMPUTES STATISTICAL MEASURES OF TEXTURE IN AN IMAGELIKE CONTRAST,CORRELATION, ENERGY & HOMOGENEITY Platforms: Matlab

In the Obrien's test to check out the homogeneity of variances the data are transforming toyij = ((nj-1.5)*nj*((xij-mean(xj))**2)-((0.5)*(var(xj))*(nj-1)))/((nj-1)*(nj-2))and uses the F distribution performing an one-way ANOVA using y as the dependent variable. Platforms: Matlab

Chi-square tests of homogeneity and independence.Computes the P-value for I x J - table row/col independence.Ref.: DeltaProt toolbox at http://services.cbu.uib.no/software/deltaprot/Input:X: data matrix (I x J -table) of the observed frequency cells.method: 'RC': Read-Cressie power divergence... Platforms: Matlab

For validation of clustering results in cluster analysis, it is important to use some objective measures to evaluate the clustering quality. This tool provides programs of such validity indices, including 4 External validity indices and 8 Internal validity indices: Rand index, Adjusted Rand... Platforms: Matlab

This file performs the Stuart-Maxwell's test for all the marginal homogeneity (i.e. across all the categories simultaneously) for each of the two sample times (nominal samples). Obviously, it need a square KxK table.It is a non-parametric statistical test. The test was proposed by Stuart (1955),... Platforms: Matlab

There are several tests for homogeneity of variances. Fligner and Killeen (1976) suggest ranking (i) the |x_ij - mean| as normal type scores (a) by (0.5 + i/2(N+1)). Where i is the group and j the observation. The replacement of the mean by the median, a modification, is an attempt to improve the... Platforms: Matlab

The homogeneity of variances test is a useful tool in many scientific applications. Boos and Brownie (2004) and Conover et al. (1981) give a broad review.Here, we developed an m-file as an alternative to the homogeinity of variances test considering the modification of the Bartlett's test... Platforms: Matlab

fcnMaxHomogeneityOverPixelNeighborhood performs noise filtering on an image using a switched mean filter with most homogeneous gray-values within a pre-specified local neighborhood around the pixel of interest. It uses a square neighborhood of 3x3 pixels to estimate the gray-level statistics in... Platforms: Matlab

EIZO Monitortest lets you test and calibrate your monitor using up to 24 different methods. It is simple to use, above all very direct, and the interface gives you all the information you need about your monitor in a short time.As has been mentioned, the range of tests is wide and varied,... Platforms: Windows

Devel::TraceLoad is a Perl module to trace loadings of Perl Programs. # with perldb perl -d:TraceLoad script.pl # without perldb perl -MDevel::TraceLoad script.pl # without perldb and with options perl -MDevel::TraceLoad=after,path script.pl # with perldb and options perl -d:TraceLoad... Platforms: *nix

Language translation is not only an art, it's a profession. Every profession has its tools. If you translate for the same clients all the time, you will inevitably have to translate the same sentence again and again. Your clients will simply reuse content among different products of the same... Platforms: Windows

It will test for trends when seasonality is present and over multiple observation stations, all of which are Chi-square statistics.These tests will allow for ties, missing data, and multiple observations per time index, since it uses the enhanced ktaub.m function that was recently updated.There... Platforms: Windows, Mac, *nix, Matlab, Solaris

Openbravo is a fully functional, integrated, web-based, open source ERP (enterprise management system) that offers a unique value proposition.The system is for small and midsize enterprises that are looking for an integrated system to manage their business. One that is capable of managing daily... Platforms: Windows, Mac, *nix, Java, BSD Solaris

Statistics fundamentals of the Correspondence Analysis (CA) is presented in the CORRAN and MCORRAN1 m-files you can find in this FEX author''s page. CA can be extended to more than two categorical variables, called Multiple Correspondence Analysis (MCA). CA and MCA are graphical techniques for... Platforms: Matlab

The demo uses one possible implementation of hooking up a SimEvents model with 3D animation using Simulink 3D Animation.A simple model of an entity generation is created in SimEvents. This entity generation is sampled in time to establish synchronism between the 3D objects created dynamically... Platforms: Matlab

Seasonal Kendall Trend Test for Data with and without Searial Dependance.Tau-b seasonal: takes into account ties (and multiple observations, except, the data are preprocessed in a subfucntion and multiple observatiosn per a given season are averaged using median).Tau-a seasonal: does not consider... Platforms: Matlab

This m-file performs the conditional as well as the Chi-squared corrected for discontinuity McNemar's exact test for two dependent (correlated) samples that can occur in matched-pair studies with a dichotomous (yes-no) response. Dependent samples can also occur when the same subject is measured... Platforms: Matlab

According to Wludyka and Nelson (1997), the Analysis of Means (ANOM), which is a test of location, can be converted into a test of scale and used to test the homogeneity of variances test, when the normality assumption is reasonable.The analysis of means for variances (ANOMV) is used for testing... Platforms: Matlab

GUI for calculating 1st and 2nd order statistics of series of images.Calculates Average, RMS, Skewness and Kurtosis - 1st order statistics. (identical to File ID: #25981 - GUI for calculating roughness parameters in images)Has an option of filtering low-frequency and high-frequency components of... Platforms: Matlab