[R] How to use "identify"

[Tom Mulholland]

Does this work for you?

x <- runif(30)
y <- runif(30)
z <- 1:30
plot(x,y)
identify(x,y,z)

That is you need to tell it everything it is looking for. Sometimes x is 
boy x and y because they use xy.coords

Tom

David Parkhurst wrote:
> I can't get identify to work, using R 2.0.1 under windows xp pro, 
> service pack 2.  Here's what I enter, and the result:
> 
>  > plot((our.frame2$c1),(our.frame2$c9))  # Produces desired plot
>  > identify(our.frame2$c1) # Plot comes to forefront, so I select a point
> warning: no point with 0.25 inches
> numeric(0)
> 
> Is my call to identify correct?  The help page for indentify (from 
> ?identify) doesn't give any examples, so I don't know what the "x" 
> should be.  I right click right on top of one of the points, then left 
> click and select stop.
> 
> Thanks for any help.
> 
> Dave Parkhurst
> 
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