The Neighborgram feature provides nodes for data visualization and predictive model constructions using neighborgrams. The neighborgram concept has been discussed in: Michael R. Berthold, Bernd Wiswedel, David E. Patterson, Interactive Exploration of Fuzzy Clusters Using Neighborgrams , Fuzzy Sets and Systems, vol. 149, no. 1, pp. 21-37, Elsevier, 2005 [PDF].
Download this workflow. This workflow requires the CDK chemistry extension to be installed. You can install this extension using "File" -> "Update KNIME" and then selecting the "KNIME CDK Chemistry Feature" (it will not be shown if it is already installed). Please note also that this workflow can take several minutes to execute.