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A multiway method to decompose a tensor (array) of any order, as a generalisation of SVD also supporting nonidentity metrics and penalisations. 2way SVD with these extensions is also available. The package includes also some other multiway methods: PCAn (Tuckern) and PARAFAC/CANDECOMP with these extensions.
Package details 


Author  Leibovici & Sabatier (1998) <doi:10.1016/S00243795(97)815169>, Didier G. Leibovici (2010)<doi:10.18637/jss.v034.i10> 
Maintainer  Didier G. Leibovici <GeotRYcs@gmail.com> 
License  GPL (>= 2) 
Version  1.334 
URL  http://c3s2i.free.fr/ 
Package repository  View on CRAN 
Installation 
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