[R] an eval/parse trivia

[Thomas W Blackwell]

Vincent  -

>From the values shown, this looks like a Bioconductor question,
rather than base R.  You might try the maintainers of whatever
package the function comes from.

Is 2287 the index in "levels" for one of the character strings
shown ?

-  tom blackwell  -  u michigan medical school  -  ann arbor  -

On Wed, 10 Dec 2003, Vincent Detours wrote:

> Dear all,
>
> Any cue on how to evaluate x?
>
> > x
> [1] structure(c("GO:0004707", "GO:0005524", "GO:0004674",
> "GO:0006468", "GO:0000074", "GO:0008372", "GO:0016740"), .Names =
> c("NAS", "NAS", "IEA", "IDA", "NAS", "ND", "IEA"))
> 6204 Levels: GO:0000074 GO:0000158 GO:0000163 GO:0000166 ...
> structure(c("GO:0019538", "GO:0016706"), .Names =
> c("IEA", "IEA"))
> > parse(text=x) #a failed attempt
> expression(2287)
> > eval(parse(text=x))
> [1] 2287
> >
>
> Any idea? By the way why does parse return 2287?
>
> Thanks for your help,
>
> Vincent Detours
>
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