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 version 1.0-0 (2012-04-20) Warning: major modifications of the pdfCluster package. Old codes might not work or produce different results! - new option which implements adaptive kernel density estimation; - new function hprop2f to automatically select the matrix of badwidths according to Silverman's(1986) approach; - new arguments "bwtype", "hx", "alpha" in function kepdf; - new kernel function "t7" to save time in computation for very large datasets; - new arghument "kernel" in function "kepdf"; - removed argument "h.weigths" in function "kepdf"; - new slots "kernel", "bwtype" and "par" in objects of class "kepdf"; - removed slots "h" and "h.weigths" in objects of class "kepdf"; - new argument "indcol" in function "plot.kepdfdd"; - new procedure to find connected components; to be used instead of the Delaunay triangulation for high-dimensional data; - new arguments in function "pdfCluster": "graphtype", "Q", "lambda", "grid.pairs"; - arguments in function pdfCluster left as optional only: "h", "n.stage"; - new slots in objects of class pdfCluster: "pdf", "graph"; - new arguments "cores" and "se" in function "pdfClassification"; - new "pdfCluster" methods for objects of class "numeric", "matrix", "data.frame", "pdfCluster"; - removed argument "h.funct" in pdfClassification; - classes "pdf.Silhouette" and "pdf.Silhouette.summary" renamed as "dbs" and "dbs.summary" respectively; - renamed slot "nc" to "noc" in dbs-class objects version 1.0-1 (2013-07-28) - new default value for argument "n.grid" of function "pdfCluster", set to an increasing function of the sample size - added a warning message when "pdfCluster" is run with data of dimension > 6 and graphtype="delaunay" - added a warning message when "pdfCluster" is run with discrete data - some typos corrected in the help files and in "show" method of objects of class "kepdf" - changed message to be displayed when "n.grid" is set to a too small value - added specific argument "hmult" of function "pdfCluster" (previously optional) - signatures of "pdfCluster" methods modified - included option to break running of foreign .C function to find pairwise connections - added new function "groups" to extract groups; slot "clusters" in objects of pdfCluster-class is now to be considered obsolete version 1.0-2 (2014-04-28) - added citation to article on the package published on Journal of Statistical Software - removed obsolete argument DUP in call to foreign functions version 1.0-3 (2018-12-04) - S3 methods registered - removed unworking links - removed warning message when the package is uploaded version 1.0-4 (2022-12-01) - removed some warnings in package check