[R] moving points labels in ordinations

Peter Nelson pnelson at cfr-west.org
Fri Oct 25 02:02:28 CEST 2013

I'm trying to place labels so as to avoid covering points (and other labels) in an ordination plot. I've been trying to use orditkplot() for this  purpose, but get an error message, even when I try to replicate the example: 

> ord <- cca(varespec)
> orditkplot(ord, mar = c(4,4,1,1)+.1, font=3)
Error in structure(.External(.C_dotTclObjv, objv), class = "tclObj") : 
  [tcl] invalid command name "tk".
In addition: Warning message:
In fun(libname, pkgname) : couldn't connect to display ":0"

Any ideas? Thanks, Pete

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