[Rd] Rubbish values written with zero-length vectors (PR#14217)

g.russell at eos-solutions.com g.russell at eos-solutions.com
Fri Feb 19 13:45:14 CET 2010

Full_Name: George Russell
Version: 2.10.0, 2.11.0 (2009-12-13 r50716)
OS: Windows
Submission from: (NULL) (

R trace:
-- cut here --
> v <- integer(0)
> v[[1]] <- v
> v
[1] 20522144
> v <- numeric(0)
> v[[1]] <- v
> v
[1] 4.254131e-314
> sessionInfo()
R version 2.10.0 (2009-10-26) 

[1] LC_COLLATE=German_Germany.1252  LC_CTYPE=German_Germany.1252   
[3] LC_MONETARY=German_Germany.1252 LC_NUMERIC=C                   
[5] LC_TIME=German_Germany.1252    

attached base packages:
[1] stats     graphics  grDevices datasets  utils     methods   base     
-- cut here --
Clearly the assignments v[[1]] <- v do not do anything useful, the problem is I
don't understand where the strange values left in v come from.

The same problem occurs with the 2.11.0 release r50716 and --vanilla. For
vanilla in Windows CMD mode I get different values in v, but ones which are to
me equally strange.

Many thanks for your help!

George Russell

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