Peter Dalgaard BSA
19 Mar 1998 18:44:14 +0100
> Btw, why can't object names contain a `@'?
Speaking of names. I've been thinking whether it would not at some
point be wise to introduce namespaces into R. This would pretty
obviously break a lot of S code, but it would also make it possible to
avoid a lot of silly problems such as naming one's variables c, t, pt,
df, rm, ...
A plan that might work relatively smoothly could involve:
- Separate functions from variables. We already do that to some extent
("looking for object of mode function...") [At the same time, one
might get rid of everyone's favourite quirk: forgetting () and
thus listing the function instead of calling it. I know: basic
design, functions are just objects, etc., but really: Wouldn't it be
nicer to type view(ls) the few times you actually wanted to see its
- All system functions and variables are really named something like
sys::c() i.e. we introduce a namespace separator ::.
Functions/variables that are intended for general use can be made
public, by a special call.
- Assignments (interactive) to an existing public name causes a
warning to be issued (or maybe an error).
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
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