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allergen

2007-Nov-05 12:49 UTC

[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],]>Fnewx  y
2000  5
...
3000  9

plot(Fnew$x,Fnew$y)
I=identify(Fnew$x)






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Sent from the R help mailing list archive at Nabble.com.

Greg Snow

2007-Nov-05 19:52 UTC

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

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.
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide 
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

R help - Nov 2007 - Identify() : How to set the offset , or a reference

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

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