search for: somes4class

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2020 Sep 11
0
more Matrix weirdness
Abby, my answer was too concise. The thrust is that even if you define a method for "[<-" with signature x="matrix" and value ="Matrix", for example, it will never be used since "matrix" is S3. If instead x="someS4class" then the S4 method will be invoked. There may be cases when changing the class of the left-hand side make sense (such as one subclass of "Matrix" to another) but certainly not for the base R vector classes. Georgi Boshnakov -----Original Message----- From: Abby Spurdle <spur...
2020 Sep 11
2
more Matrix weirdness
> > "These operators are also implicit S4 generics, but as > > primitives, S4 methods will be dispatched only on S4 > > objects ?x?." > Yes, exactly, very well found, Georgi! I'm sorry Martin, but I don't understand your point here. I'm assuming that you want the (S3) matrix, x, to be converted to an (S4) Matrix. However, this is not a