[Rd] bug or feature? (PR#4150)

w.huber at dkfz-heidelberg.de w.huber at dkfz-heidelberg.de
Sun Sep 14 23:33:11 MEST 2003


Hi Axel,

You may wish to consult the man page for the '==' operator and the
'identical' function.

> identical(1, "1")
[1] FALSE
> ? "=="
> ? identical

And probably your notion of a "bug" is too wide: please have a look at the
section "R Bugs", 9.1 in the R FAQ.

Best regards
   Wolfgang

-------------------------------------
Wolfgang Huber
Division of Molecular Genome Analysis
German Cancer Research Center
Heidelberg, Germany
Phone: +49 6221 424709
Fax:   +49 6221 42524709
Http:  www.dkfz.de/mga/whuber
-------------------------------------

On Sat, 13 Sep 2003 axel.benz at iao.fhg.de wrote:

> Full_Name: Axel Benz
> Version: 1.7.1
> OS: Windows
> Submission from: (NULL) (137.251.33.43)
>
>
> This feature seems to be a basic bug:
>
> > 1=="1"
> [1] TRUE
> > as.numeric(1)=="1"
> [1] TRUE
> > as.numeric(1)==as.character("1")
> [1] TRUE
>
> isn't it necessary to distinguish beteen numbers and characters??
>
> Best Regards,
> Axel
>
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>



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