Re: [Rd] Mere chat on vectorisation matters

2006-05-13 Thread François Pinard
Hi to all. Not so long ago, I wrote: >Allow me to chat a tiny bit on two vectorisation-related matters, in >the context of R. I'm curious about if the following ideas have ever >been considered, and rejected already. [... then, a few words about >Duff's device, and operation chaining ...] As

[Rd] Mere chat on vectorisation matters

2006-05-10 Thread François Pinard
Hi, people. Allow me to chat a tiny bit on two vectorisation-related matters, in the context of R. I'm curious about if the following ideas have ever been considered, and rejected already. First is about using the so-called Duff's device for partially unrolling loops. I did not overly check