Un research, new method called State Augmentation for Marginal Density is used. From this method, it is used for mixture models. Un research, new method called State Augmentation for Marginal Density is used. From this method, it is used for mixture models. Un research, new method called State Augmentation for Marginal Density is used. From this method, it is used for mixture models. Un research, new method called State Augmentation for Marginal Density is used. From this method, it is used for mixture models.