[R] Summary re: read.table on Mac OS 10

Prof Brian Ripley ripley at stats.ox.ac.uk
Thu Feb 21 16:31:46 CET 2002


That's not the current version of R.  When you update to 1.4.1 you'll
see the bug fix list includes this.

It transpired that the posting earlier today about the speed of read.table
on Darwin vs Carbon was also a difference in R version (1.4.0 vs 1.3.1).

Please do tell us the R version(s) you are using when posting.
Installing 1.x.1 to replace 1.x.0 is highly recommended, for all values of
x.

On Thu, 21 Feb 2002, David R. Bickel wrote:

> Prof. Ripley,
>
> I encountered the read.table problem in the Darwin version using
> as.is=TRUE, but not with as.is=FALSE. It gives different results than
> the Carbon version does. The output for each version follows; 'temp' is
> a two-line text file with three tab-delimited columns.
>
> UNDER DARWIN:
>  > read.table('temp')
>                V1   V2   V3
> 1 AFFX-BioB-5_at -214 -139
> 2 AFFX-BioB-M_at  -49  -11
>  > read.table('temp',as.is=TRUE)
> stack imbalance in internal type.convert, 26 then 25stack imbalance in
> Internal, 25 then 24
> stack imbalance in if, 19 then 18
> stack imbalance in <-, 17 then 16
> stack imbalance in {, 15 then 14
> stack imbalance in for, 8 then 7
> stack imbalance in {, 6 then 5
>                V1   V2   V3
> 1 AFFX-BioB-5_at -214 -139
> 2 AFFX-BioB-M_at  -49  -11
> Error: unprotect(): stack imbalance
>
> UNDER CARBON:
>  > read.table('temp')
>                V1   V2   V3
> 1 AFFX-BioB-5_at -214 -139
> 2 AFFX-BioB-M_at  -49  -11
>  > read.table('temp',as.is=TRUE)
>                V1   V2   V3
> 1 AFFX-BioB-5_at -214 -139
> 2 AFFX-BioB-M_at  -49  -11
>
> Best regards,
> David
>
>
> On Thursday, February 21, 2002, at 02:13 X, Prof Brian Ripley wrote:
>
> > Neither of you have anywhere told us what the actual error message was
> > in problem number 3.
>
> http://www.mcg.edu/research/biostat/bickel.html
>
> David R. Bickel, PhD
> Assistant Professor
> Medical College of Georgia
> Office of Biostatistics and Bioinformatics
> 1120 Fifteenth St., AE-3037
> Augusta, GA 30912-4900
>
> Tel.: 706-721-4697; Fax: 706-721-6294
> E-mail: dbickel at mail.mcg.edu or bickel at prueba.info
>
>

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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