[R] Interactively editing point labels in a graph

[trece por ciento]

Thanks, Liviu
In a first look it seems OK. Two questions:
1. Playwith accept directly the plots created by the ca package, but it seems unable to identify the point labels
For example:
data(smoke)
smoke
ca(smoke)
plot(ca(smoke))
playwith(plot(ca(smoke)))
Then, if I try to identify a label playwith gives the message "Sorry, can not guess the data point coordinates. Please contact the maintainer with suggestions".
If I ask to select the label from a table playwith sends the following message to RGui: "Error in data.frame(..., check.names = FALSE) :
arguments imply differing number of rows: 2, 0"
2. Can playwith draw ellipses or any other figure around selected points?

(For the first question it seems my fault, but I don't know how to fix it)

Hug

--- On Wed, 2/3/10, Liviu Andronic <landronimirc at gmail.com> wrote:

> From: Liviu Andronic <landronimirc at gmail.com>
> Subject: Re: [R] Interactively editing point labels in a graph
> To: "trece por ciento" <el13porciento at yahoo.com>
> Cc: r-help at r-project.org
> Date: Wednesday, February 3, 2010, 3:49 AM
> Hello
> 
> On 2/3/10, trece por ciento <el13porciento at yahoo.com>
> wrote:
> > Dear experts,
> >  I would like to be able to interactively (if
> possible, with mouse and clik) edit point labels in graphs,
> >
> Try playwith.
> Liviu
> 
> > particularly in multivariate graphs, such as the
> biplots you get after a correspondence analysis (with, for
> example, package ca), where labels tend to overlap. The
> graph aspect ratio is relevant (it needs to be mantained).
> And I'm working with Windows XP.
> >  In this kind of graphs points in the graph are
> identified with labels, generally long (see, for example: http://www.white-history.com/Greece_files/hlafreq.jpg),
> and sometimes -as in the example- it is good to group
> certain points within ellipses.
> >  Do you know if exists some package able to do
> this task?
> >  Thanks in advance,
> >  Hug
> >
> >  ______________________________________________
> >  R-help at r-project.org
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> >
> 
> 
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