Plot Dunn's alternative index (minimum average dissimilarity between two cluster divided by maximum average within cluster dissimilarity) for different values of K.
plotDunn2s(dunns, chosenK = NULL, fileName)Vector of widest gap values for K from 2 to some value maxK.
Chosen number of clusters. If specified, a vertical line is plotted in correspondence of the indicated value. Default is NULL.
Name of the png file.