[R] adding text to persp

[Peter Dalgaard BSA]

"Mike Lonergan" <mel at mcs.st-and.ac.uk> writes:

> A very crude solution is to superimpose two plots.
> 
> Though I don't quite understand why:
> 
> persp(a)
> par(new=T)
> persp(a')
> 
> puts the plot of a' on top of a (R1.3.1, Windows), while
> 
> par(new=T)
> persp(a)
> persp(a')
> 
> doesn't.
> 
> Apologies if this is already common knowledge.
> If it is unintended, I would prefer nobody fixed it!

It's intended. Basically, it par(new=T) tells the system "Pretend that
this page is blank".

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907
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