clustMDparallel object, a number of clusters
and a covariance model as inputs. It then returns the output corresponding
to that model. If the particular model is not contained in the
clustMDparallel object then the function returns an error.getOutput_clustMDparallel(resParallel, nClus, covModel)clustMDparallel object.clustMD object containing the output for the relevant
model.