Normal Gaussian Distribution

Fit a multivariate gaussian mixture by a cross-entropy method. Cross-Entropy is a powerfull tool to achieve stochastic multi-extremum optimization.Please visit http://iew3.technion.ac.il/CE/ for more informationsi) Please compile mex-files by the mexme_ce_gauss.m (if compiler is not setup, run...

An electron gun produces particles with specified rates and random velocities and direction, some of them collide with upper plate that its position and size are defined. This program simulate this process and shows what percent of particles collide with the plate and also show the distribution...

The algorithm takes in a 1-D signal and finds the Gaussian derivative of it with the given kernel size and sigma, to provide the zero crossings. The zero crossings are then analyzed to give peaks and valleys. In order to remove very closely situated peaks and valleys, a width (provided by the...


Platforms: Matlab

This technique simply calculates variation based on a comparison of all abundances in a time series, and is free of assumptions of an underlying 'normal' distribution. It is more robust that the coefficient of variation CV and/or the standard deviation of log transformed abundances SDL, it is not...


Platforms: Matlab

This function extracts a scalar/vector/matrix of random numbers with discrete Probability Distribution Function.The PDF is specified by the user as a input vector.This function is designed to be fast, and it is implemented within a .mex fileFollowing Olivier B. comments (that I acknowledge for...


Platforms: Matlab

Calculate and plot BER curve against SNR for BPSK Modulation in Gaussian Environment.It calculates 100 errors to Calculate BER for every SNR value to ensure better approximation.I hope that this help students of signal processing and communications alot.


Platforms: Matlab

With this GUI you can find the best distribution that fits your data.1. Save the Main_FitDistribution_GUI.fig and Main_FitDistribution_GUI.m files at the same directory.2. Run the Main_FitDistribution_GUI.m file.3. Load data using the "Load Data" button. The file should be a text file with 1...


Platforms: Matlab

Generates complex generalized gaussian random variables with augmentedcovariance matrix Ta = [2*s 0; 0 2*s];and shape parameter c, where c = 1 corresponds to the Gaussian case.x = cggd_rand(c,s,N) generates a vector 1xN of complex samples with a circulargaussian distribution with shape parameter...


Platforms: Matlab

At the moment, the normal inverse Gaussian distribution is not included in the statistics toolbox. This collection of m-files supplements this toolbox with the most important functionalities for the NIG distribution: random numbers, moments, cdf, pdf and parameters by moment fit.


Platforms: Matlab

Computes the Gaussian function in 1D:exp(-log(2)*(2*(x-x0)./FWHM).^(2*floor(abs(order))));Where:x = Co-ordinatex0 = Centre of functionFWHM = Full Width Half Max of the functionorder = Gaussian orderNormal Gaussian is of order 1.Note that FWHM = (1/e Half Width)/sqrt(2*log(2))log is the natural log.


Platforms: Matlab

This script calculates BER for a numebr of SNR values in gaussian environment for QAM 16 Modulation.It calculates 100 errors for each BER measuremnet for better results.I hope this will be helpful for students of signal processing and communications alike.


Platforms: Matlab

bivnormcdf gives the bivariate normal probability.function p = bivnormcdf(a,b,rho)where rho is the correlation.


Platforms: Matlab

This m-file produces random numbers from the negative Binomial distribution using one of four methods and it tests which is faster.


Platforms: Matlab

Creates a number of samples from a specified number of dimensions and centers them around a given mean, and within a given covariance range. You might not find it very useful, but hey, I need something to do this so why not.To use:You need to generate 1000 samples from a 3 dimensional Gaussian...


Platforms: Matlab

Create a non isotropic 3D Gaussian PSFThe program takes three different standard deviation as input and creates a 3D non isotropic Gaussian distribution realted to it.Works faster with Statistical toolbox, but works fine without.


Platforms: Matlab

Permutation test of the null hypothesis that a set of data was sampled from a symmetric distribution with a particular mean. The test is based on a t-statistic and can be applied to situations in which a one sample or paired sample/repeated measures t-test is appropriate. Note, that this test is...


Platforms: Matlab

MVG is a multivariate Gaussian (normal) random number generator. A user can generate a vector from the multivariate normal distribution of any dimension by specifying a mean vector and symmetric positive-definite covariance matrix. A linear transformation based on the Cholesky decomposition of...


Platforms: Matlab

This code generates the electronic distribution for known chemical elements


Platforms: Matlab

It is a normal sinus rythm of heart VI1 simulink,artificial heart,sinus beater greater,frequencies,FS=2FA=2FV.13 pics for sinus and 5 pics for A and V.


Platforms: Matlab

Two files:They find the Maximum Likelihood Estimators for the parameters of the Gumbel distribution for the minimum and the Gumbel distribution for the maximum.


Platforms: Matlab