R help - Feb 2000 - Version 0.90.1 bug report on matrix indexing

Hi ,

R Version 0.90.1 on Solaris2.5 and Suse Linux 6.[1,3] crashes some time
after a matrix row or column has been addressed via an incorrect
row/colname:


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Version 0.90.1  (December 15, 1999)

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Attaching Package "package:genproc":


        The following object(s) are masked from package:base :

         date unix 
> bla_matrix(1:24,nc=6)
> dimnames(bla) _ list(1:4,1:6)
> bla
  1 2  3  4  5  6
1 1 5  9 13 17 21
2 2 6 10 14 18 22
3 3 7 11 15 19 23
4 4 8 12 16 20 24
> bla["a",]_.6
> bla
  1   2    3    4    5    6
1 1 0.6  0.6  0.6  0.6  0.6
2 2 6.0 10.0 14.0 18.0 22.0
3 3 7.0 11.0 15.0 19.0 23.0
4 4 8.0 12.0 16.0 20.0 24.0
> gc()
Bus error

--  Dr. Joerg Kindermann             GMD - AiS
            German National Research Center for Information Technology
                Schloss Birlinghoven, D-53754 St. Augustin, Germany
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Joerg Kindermann <Joerg.Kindermann at gmd.de> writes:
> 
> > bla_matrix(1:24,nc=6)
> > dimnames(bla) _ list(1:4,1:6)
> > bla
>   1 2  3  4  5  6
> 1 1 5  9 13 17 21
> 2 2 6 10 14 18 22
> 3 3 7 11 15 19 23
> 4 4 8 12 16 20 24
> > bla["a",]_.6
> > bla
>   1   2    3    4    5    6
> 1 1 0.6  0.6  0.6  0.6  0.6
> 2 2 6.0 10.0 14.0 18.0 22.0
> 3 3 7.0 11.0 15.0 19.0 23.0
> 4 4 8.0 12.0 16.0 20.0 24.0
> > gc()
> Bus error
Still present in (yesterdays) 1.0.0pre. Thanks for the report.

-- 
   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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