Morpher to merge nodes at equal locations

[luukvdmeer]

It is possible to have a network with multiple nodes at the same locations. Sometimes it may also make sense conceptually (e.g. in geolocated social networks with different people living in the same household). I think however a dedicated morpher to merge such nodes into one, with the option to specify how to summarise attributes, can be a helpful addition to our set of network cleaning functions.