Variance Arithmetic Mean

Leave-one-out cross-validation for PLS regression or discriminant analysispls_cv = plscv(x,y,vl,'da')input:x (samples x descriptors) for cross-validationy (samples x variables) for regression or (samples x classes) for discriminant analysis. Classes numbers must be >0.vl (1 x 1) number of latent...

Besides the power estimation it makes the hypothesis testing concerning the one-sample variance. The function only needs the sample variance, the sample size, the hypothesized value and the significance level.

This is a simple function that should come with the one present on this site (Variance Ratio Test) which couldn't work without this.


Platforms: Matlab

Following features are calculated:% Mean% Variance% Skewness% Kurtosis% Energy% EntropyAny Other histogram based features can be easily incorporated.Enjoy it


Platforms: Matlab

Generates a sample of observations having user defined correlation matrix R. Optionally, the user may also define the means and variances. If unspecified, these two arguments will default to a mean vector of zeros and variance vector of ones.


Platforms: Matlab

Whereas standard deviation and variance are measures of absolute variance, the coefficient of variation is a measure of relative variance. This is generally useful to compare several data sets. It can also be used as a simple quality indicator. The definition used here is ratio of standard...


Platforms: Matlab

This function provides a Wilcoxon-type test for trend across a group of three or more independent random samples.Assumptions:- Data must be at least ordinal- Groups must be selected in a meaningful order i.e. orderedIf you do not choose to enter your own group scores then scores are allocated...


Platforms: Matlab

This function generates Pareto random variables (of type I). See "Statistical Distributions", Evans, Hastings and Peacock, Wiley, 1993or http://www.maths.adelaide.edu.au/matthew.r...trns/node6.htmlor http://en.wikipedia.org/wiki/Pareto_distribution The Pareto distribution is a classic...


Platforms: Matlab

Henze and Zirkler (1990) introduce a multivariate version of the univariate There are many tests for assessing the multivariate normality in the statistical literature (Mecklin and Mundfrom, 2003). Unfortunately, there is no known uniformly most powerful test and it is recommended to perform...


Platforms: Matlab

Forces the pdf of data to have a normal distribution using a data adaptive lookup table. [normX,Bx,By]=normalizepdf(X)normX=N(X), where N is an data adaptive monotonically increasing function. normX will have zero mean and unit variance.Bx,By is the lookup table


Platforms: Matlab

Levene's F test is used to test the null hypothesis that multiple population variances corresponding to multiplesamples are equal. Prior to the analysis the data are transforming to the absolute deviation of the mean. Then perform an one-way analysis of variance.


Platforms: Matlab

% Kruskal_Wallis% This is a statistical test to check two datasets if are different.% Kruskal_Wallis is similar to one way ANOVA but the data is not expected% to be natrual distribution. It works with any breaked condition of the% ANOVA.%% As a reminder, the assumptions of the one-way ANOVA for...


Platforms: Matlab

Let the input to this function be X, an m x n matrix. Also, let Y be the output. This function does the following.Y(:,i) = X(:,i) - mean(X(:,i)), for i = 1 to n


Platforms: Matlab

Leave-one-out cross-validation for PLS regression or discriminant analysispls_cv = plscv(x,y,vl,'da')input:x (samples x descriptors) for cross-validationy (samples x variables) for regression or (samples x classes) for discriminant analysis. Classes numbers must be >0.vl (1 x 1) number of latent...


Platforms: Matlab

Fits the Laird-Ware Linear Random Effects Model. This model assumes that for each subject y=x*b+z*g+e where x and z are known m x p and m x r matricies, b is p x 1 parameter vector and g is a r vector which has a multivariate normal distribution with mean zero, e is a vector of identitcal...


Platforms: Matlab

This M-file focuses on a 3-class pattern classification problem. It generates hundred random samples for each pattern class using given parameters for the class-conditional densities. Further the Gaussian classifier is implemented to classify test samples of each class using equal prior class...


Platforms: Matlab

This script executes some basic calculations from the following article.Leonard AC, Franson SE, Hertzberg VS, Smith MK & Toth GP (1999) Hypothesis testing with the similarity index. Molecular Ecology 8: 2105-2114.Please consult this article for any conceptual or mathematical details.The script...


Platforms: Matlab

A simple example arithmetic logic unit (2-bit ALU) that does AND, OR, NOT, and additionf0 and f1 stands for 1 operationf1 f0 operation===============0 0 addition0 1 NOT of A1 0 OR1 1 AND


Platforms: Matlab

This will calculate the weights for the .. 1. Global-Minimum-Variance model 2. 1/N modelCalculate your returns, put them into excel. Let Matlab read it and run the file.Et voila.


Platforms: Matlab

MPACK is a free and open source library that provides a multiple precision arithmetic version of linear algebra package, similar to the BLAS and LAPACK.


Platforms: Mac