[R] locator in multiple graphics

Uwe Ligges ligges at statistik.uni-dortmund.de
Mon Sep 15 15:27:45 CEST 2003

solares at unsl.edu.ar wrote:

> hello, how i cant with function locator() know the coordinates of two 
> function graphicated in the same graphical area, the return coordinates 
> which are they , of one function or the another function:
> |    f
> |   /(click here)  locator(1), return (x,y) of f or g function?
> |  /
> | / 
> |/~~~~~g
> |________________

Might be neither!
It returns a value specified in user coordinates of the plotting region 
at the time locator() was called. ?locator could be a bit more specific 
here ...


  par("usr" = c(101,110,101,100))

as an example

Uwe Ligges

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