Gaussian Mixture Distribution
A Gaussian mixture distribution is a multivariate
                        distribution that consists of multivariate Gaussian distribution components.
                        Each component is defined by its mean and covariance, and the mixture is
                        defined by a vector of mixing proportions. Create a distribution object
                            gmdistribution by fitting a model
                        to data (fitgmdist) or by specifying
                        parameter values (gmdistribution). Then, use object
                        functions to perform cluster analysis (cluster, posterior, mahal), evaluate the
                        distribution (cdf, pdf), and generate random
                        variates (random).
Functions
Topics
- Create Gaussian Mixture ModelCreate a known, or fully specified, Gaussian mixture model (GMM) object. 
- Fit Gaussian Mixture Model to DataSimulate data from a multivariate normal distribution, and then fit a Gaussian mixture model (GMM) to the data. 
- Simulate Data from Gaussian Mixture ModelSimulate data from a Gaussian mixture model (GMM) using a fully specified gmdistributionobject and therandomfunction.
- Cluster Using Gaussian Mixture Model
 Partition data into clusters with different sizes and correlation structures.