On Mon, 25 Jan 2021, Sven Schreiber wrote:
Sounds good to me. Does this operation have a name in algebra?
To the best of my knowledge, it's a variant of the Khatri-Rao product (as
mentioned in the help files). I've just learned that Wikipedia also calls
it the "face-splitting" product.
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Riccardo (Jack) Lucchetti
Dipartimento di Scienze Economiche e Sociali (DiSES)
Università Politecnica delle Marche
(formerly known as Università di Ancona)
r.lucchetti(a)univpm.it
http://www2.econ.univpm.it/servizi/hpp/lucchetti
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