[R] prefixing list names in print

[Prof Brian Ripley]

On Tue, 8 Aug 2006, Laurent Deniau wrote:

> With
> 
> print(list(A="a",B="b"))
> 
> it displays
> 
> $A
> [1] "a"
> 
> $B
> [1] "b"
> 
> I would like to add a common prefix to all the list tags after the $.

`prefix' ... `after'?  You seem to want to prefix component names: why?
What do you want for component $a$b$c?  For unnamed components?
 
> Pasting the prefix to the "names" does not work (appear after the $). 
> For example if the prefix would be "P", it should display:
> 
> P$A
> [1] "a"
> 
> P$B
> [1] "b"
> 
> I tried to add a "name" attribute to the list or to add a prefix="P" to 
> print but nothing works. Any hint?

You will need to alter the C code to do this.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
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