Or maybe:
> while(length(ind <- identify(x,y,n = 1, plot = F)))
> points(x[ind], y[ind], pch = 19)
(highlights each point as you select it, until you click _stop_)
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of Crombie, Joe
Sent: Thursday, 20 September 2007 2:11 PM
To: r-help at stat.math.ethz.ch
Subject: Re: [R] Identify and plotting symbols. [SEC=UNCLASSIFIED]
Rolf turner wrote:
>I have been trying, unsuccessfully, to use identify() to (simply)
>return a list of the indices of points clicked on and overplot (with
>say a solid dot) each clicked-on point so that I can see where I've
>been. I.e. I don't want to see the indices printed on the screen; I
just want the points I've already selected to be
highlighted.>
>I tried
>
> ind <- identify(x,y,labels=rep("\021",length(x)),offset=0)
Why not:
ind <- identify(x,y, plot = F)
points(x[ind], y[ind], pch = 19)
Cheers Joe
Joe Crombie
Information and Risk Sciences
Bureau of Rural Science
Canberra Australia
p: +61 2 6272 5906
e: joe.crombie at brs.gov.au
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