I am very interested in a feature that I have not been able to implement in the workflow. I would like to make a node that combines ouput from several other nodes and provides a summary. (In particular, I would like to make a node that is able to compute a copula; the input nodes would produce a table with a single column each and the copula node would then aggregate them into a single row for further analysis).
I cannot be restricted to just one, two or any given number of inputs. I would like to be able to link as many nodes to my new node as the problem at hand requires.
Carlos J. Gil Bellosta