Hi Robin,

I have 2.5 (pretty recent) installed my my mac-mini and I don't get the
error. I do not run R-2.4.1 so I cannot see if I can reproduce your error. I
build R from source rather than using the universal binary though, so try
that and see if that helps. Can anyone with R-2.4.1 reproduce this error?

> A <- matrix(c(1,0.2+0.1i,0.2-0.1i,1),2,2)
> A
         [,1]     [,2]
[1,] 1.0+0.0i 0.2-0.1i
[2,] 0.2+0.1i 1.0+0.0i
> eigen(A)
$values
[1] 1.2236068 0.7763932

$vectors
                      [,1]                  [,2]
[1,] -0.7071068+0.0000000i -0.7071068+0.0000000i
[2,] -0.6324555-0.3162278i  0.6324555+0.3162278i

> sessionInfo()
R version 2.5.0 Under development (unstable) (2007-02-08 r40671)
i386-apple-darwin8.8.1

locale:
C

attached base packages:
[1] "stats"     "graphics"  "grDevices" "utils"     "datasets"  "methods"
[7] "base"
>

Cheers,
--Tony

On 2/22/07, Robin Hankin <r.hankin@noc.soton.ac.uk> wrote:
>
> Hello
>
> I just now get a bus error with R-2.4.1[Universal binary downloaded
> from CRAN just now], and also with (recently compiled) R-2.5.0.
> I have Xcode 2.4.1.
>
>
>
> Under R-2.4.1:
>
>
> octopus:~/scratch% R --vanilla
>
> R version 2.4.1 (2006-12-18)
> Copyright (C) 2006 The R Foundation for Statistical Computing
> ISBN 3-900051-07-0
>
> [snip]
>
> 'help.start()' for an HTML browser interface to help.
> Type 'q()' to quit R.
>
>
> >
> > A <- matrix(c(1,0.2+0.1i,0.2-0.1i,1),2,2)
> > eigen(A)
>
> *** caught bus error ***
> address 0x1, cause 'invalid alignment'
>
> Traceback:
> 1: .Call("La_rs_cmplx", x, only.values, PACKAGE = "base")
> 2: eigen(A)
>
> Possible actions:
> 1: abort (with core dump)
> 2: normal R exit
> 3: exit R without saving workspace
> 4: exit R saving workspace
> Selection:
>
>
>
> the same thing happens with R-2.5.0
>
> Anyone?
>
>
>
>
>
>
>
> --
> Robin Hankin
> Uncertainty Analyst
> National Oceanography Centre, Southampton
> European Way, Southampton SO14 3ZH, UK
>   tel  023-8059-7743
>
> _______________________________________________
> R-SIG-Mac mailing list
> R-SIG-Mac@stat.math.ethz.ch
> https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>

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