ASYMPTOTIC BEHAVIOUR OF THE PROBABILITIES OF THE ERRORS IN THE CLASSIFICATION PROBLEM WITH GROWING DIMENSION Tatjana Pavlenko, Matematisk Statistik i Lund Discriminant analysis when the number of unknown parameters is proportional to the number of observations is presented. It is supposed that the variables are partitioned into an increasing number of blocks (non-empty subsets) with fixed dimension. In such a case asymptotic normality of the plug-in discriminant function has been proved. Based on this result asymptotic probabilities of misclassification are obtained via the Kullback-Leibler distance between populations and the relation between the dimension of the observed vector and the size of the training samples.