It performs discriminant analysis based on 
  posterior summary for (re-labeled) mixture
  components in a model with fixed number of components fitted with
  NMixMCMC function.
NMixPlugDA(object, y)A data.frame with 
  columns labeled prob1,..., probp giving
  plug-in estimates of probabilities of belonging to each component and a column
  labeled component giving the index of the component with the
  highest component probability.
an object of class NMixMCMC
vector, matrix or data frame with observations to be clustered
Arnošt Komárek arnost.komarek@mff.cuni.cz
NMixMCMC, NMixPredDA.