[R] Identify() : How to set the offset , or a reference

[Greg Snow]

You need to supply both x and y to the identify function.  The suprising
thing is that the first call worked.

So try:

> plot(F$x,F$y)
> I=identify(F$x,F$y)
> Fnew=F[I[1]:I[2],]
> plot(Fnew$x,Fnew$y)
> I=identify(Fnew$x,Fnew$y)

Hope this helps,

-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at intermountainmail.org
(801) 408-8111
 
 

> -----Original Message-----
> From: r-help-bounces at r-project.org 
> [mailto:r-help-bounces at r-project.org] On Behalf Of allergen
> Sent: Monday, November 05, 2007 5:50 AM
> To: r-help at r-project.org
> Subject: [R] Identify() : How to set the offset , or a reference
> 
> 
> Hello,
> 
> I try to make several zoom in chosen region. 
> So i use identify to indicate in which area to zoom.
> i want o make it several time.
> But once I zoom one time, the identify fonction gives bad results.
> 
> There is a short example, when i try to identify in Fnew  it 
> sems that there is an offset , or a bad reference. 
> So the given result is "No point in 0,25inch"
> 
> thanks
> 
> 
> F=read.table.....
> >
> x    y
> 1   3
> 2   5
> ....
> 3999   8
> 4000   9
> 
> plot(F$x,F$y)
> I=identify(F$x)
> Fnew=F[I[1]:I[2],]
> >Fnew
> x  y
> 2000  5
> ...
> 3000  9
> 
> plot(Fnew$x,Fnew$y)
> I=identify(Fnew$x)
> 
> 
> 
> 
> 
> 
> --
> View this message in context: 
> http://www.nabble.com/Identify%28%29--%3A-How-to-set-the-offse
> t-%2C-or-a-reference-tf4751411.html#a13586185
> Sent from the R help mailing list archive at Nabble.com.
> 
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