[R] Memory woes

[Peter Dalgaard BSA]

"John D. Barnett" <jbarnett at wi.mit.edu> writes:

> isoMDS <- function(d, y=cmdscale(d, 2), maxit=50, trace=TRUE)
> 
> this means that the whole time I was waiting, was spent in copying d.
> Is this correct?

No. R has lazy evaluation, so it means that it didn't actually need
the value y before the point where it stopped. 

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
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