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2004 Mar 27
1
Re: [S] scalability
...R> There are almost always pros and cons with these issues. S's sum() is an BR> S4 generic whereas R's is internal *unless* you define an S4 method for BR> it (which S-PLUS has already done). S needs to create several frames for BR> what is a nested set of function calls -- 1280b looks modest for that. BR> BR> Also, S has an ability to back out calculations that R does not, and that BR> costs memory (and can have benefits). BR> BR> We know there are overheads in making functions generic, especially BR> S4-generic, but then there are benefits too. I am...