[Rd] Pb with lapply()

Gabor Grothendieck ggrothendieck at gmail.com
Thu Jan 31 21:44:26 CET 2008


I just checked and the
code that previously triggered the promises in lists
bug seems to work now so I guess it is a different
problem.

# code below previously triggered errors but now works
# R 2.6.2 (2008-01-26 r44181) on Vista
f <- function(x) environment()
z <- as.list(f(7))
dput(z)
structure(list(x = 7), .Names = "x")
z[[1]] == 7
force(z[[1]]) == 7


On Jan 31, 2008 2:33 PM,  <hpages at fhcrc.org> wrote:
> Hi Gabor,
>
> Quoting Gabor Grothendieck <ggrothendieck at gmail.com>:
>
> > The problem of promises not being evaluated in
> > lists has been discussed before.
> >
> > I think its fixed in the development version of R. See
> > r44139 on Jan 24, 2008 in http://developer.r-project.org/R.svnlog.2007
> >
>
> I'm using R-devel r44238 and the problem is still here.
>
> Cheers,
> H.
>
> > sessionInfo()
> R version 2.7.0 Under development (unstable) (2008-01-29 r44238)
> x86_64-unknown-linux-gnu
>
> locale:
> LC_CTYPE=en_US.UTF-8;LC_NUMERIC=C;LC_TIME=en_US.UTF-8;LC_COLLATE=en_US.UTF-8;LC_MONETARY=en_US.UTF-8;LC_MESSAGES=en_US.UTF-8;LC_PAPER=en_US.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US.UTF-8;LC_IDENTIFICATION=C
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
>
>
>



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