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: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Crombie, Joe
Sent: Thursday, 20 September 2007 2:11 PM
To: [EMAIL PROTECTED]
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: [EMAIL PROTECTED]
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