
version 0.1-8 (Feb.2011):
  first public release and distribution via WWW

version 0.1-9 (2011-03-31)
 - included a function to compute the adjusted Rand index of two partitions
 - included the density-based Silhouette plot as possible option when displaying objects of class pdfCluster.

version 0.1-10 (2011-06-10)
 - fixed a bug in pdfClassification
 - included the possibility to match argument in choosing a method for plotting objects of class kepdf
 - changed the default colors to be used when plotting objects of class pdfSilhouette. 
 - added the Call of the function in the Show-methods for function pdfCluster
 - fixed a bug in function dbs, occurring when some posterior probabilities are numerically estimated as zero 

version 0.1-11 (2011-06-16)
 - fixed a bug in the procedure for finding high-density connected regions, occurring when groups are so well separated that more than 
   one connected region are founded for any of the n.grid thresholds of the density estimate
 - included a message to be printed when classification of low-density data points is accomplished in less than n.stage stages. 

version 0.1-12 (2011-06-27)
 - found a bug in function "quantile". Given a vector of ordered probabilities, it may return unsorted quantiles (at the 16th digit).    fixed by rounding to the 15th digit the values of function "quantile".
 - some minor changes in documentation. 

version 0.1-13 (2011-06-29)
 - extended the class "dendrogram" to the slot "tree" of objects of class pdfCluster, also when 1 cluster only is found. As a consequence,
   plotting the cluster tree is now possible even in this case.
 - removed the slot "ctrl" from objects of class pdfCluster
 - included the slot "noc" in objects of class pdfCluster
 - included a control in pdfClassification: outliers with zero estimated conditional density of belonging to the detected groups are now    excluded from the classification  
  