R devel - Feb 1999 - wish list

Some of these I can implement pretty easily myself, others are harder
...

GRAPHICS:

    - a new option(), "plot.type", that allows one to set the default
plot
type for pairs of points to something other than "p";

    - the ability to set just the lower or upper limits on an axis and
have the other limit auto-scaled (somewhat trickier: I don't know the
most convenient way for the user to specify this)

    - the ability to add points, text, etc. to persp() plots for
annotation (when Ross discussed this, I wasn't sure whether there were
going to be two separate kinds of 3-D plots) 

MISC:

  either an option or a separate function that makes edit() change the
underlying object:

pedit <- function (y) 
{
    assign(deparse(substitute(y)), edit(y), inherits = TRUE)
}

  regexp/tab completion for the help system (ha!)




Benjamin Bolker          Dep't of Ecology and Evolutionary Biology,
ben@eno.princeton.edu    Princeton University
tel: (609) 258-6886,     fax: (609) 258-1334


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On Tue, 9 Feb 1999, Ben Bolker wrote:
>     - the ability to set just the lower or upper limits on an axis and
> have the other limit auto-scaled (somewhat trickier: I don't know the
> most convenient way for the user to specify this)
The obvious idea is to use NA to specify a limit to be computed.
 
>   either an option or a separate function that makes edit() change the
> underlying object:
> 
> pedit <- function (y) 
> {
>     assign(deparse(substitute(y)), edit(y), inherits = TRUE)
> }
Why do you want that? In particular, what do you want inherits = TRUE to
achieve?  (As I understand R's documentation, this replaces objects
found down the search path in the global environment, so you must
envisage calling pedit from within a nested set of expressions.)

If you take a closer look at fix(), you will see that you only want
to deparse names and it would be better to check if y (why `y'?) exists.
As I see it all you want to do is to change the last line of fix, and I am
puzzled as to why you want to do that.

-- 
Brian D. Ripley,                  ripley@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 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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