[R] the value of the last expression

[R. Michael Weylandt]

On Mon, Dec 10, 2012 at 7:13 PM, Sam Steingold <sds at gnu.org> wrote:
>> * Richard M. Heiberger <ezu at grzcyr.rqh> [2012-02-09 21:48:50 -0500]:
>>
>> .Last.value
>
> Thanks; it worked for a while, but not anymore:
>
> http://stat.ethz.ch/R-manual/R-patched/library/base/html/Last.value.html
> --8<---------------cut here---------------start------------->8---
>> gamma(1:15)
>  [1]           1           1           2           6          24         120
>  [7]         720        5040       40320      362880     3628800    39916800
> [13]   479001600  6227020800 87178291200
>> z <- .Last.value
>> z
> NULL
> --8<---------------cut here---------------end--------------->8---

That's certainly odd.... I don't see anything in your .Rprofile which
raises red flags, but you can confirm by running

R --vanilla

which will ignore all environment settings, .*(rc|profile), saved sessions etc.

I presume you've tested in a fresh session and seen this behavior
consistently? If so, could you provide your sessionInfo() and source
of the binary you're using.

>
> could my .Rprofile be at fault?
> --8<---------------cut here---------------start------------->8---
> ## breaks ess
> ## options(error = utils::recover)
> options(max.print = 100, repos = c(CRAN = "http://lib.stat.cmu.edu/R/CRAN/"))
> library(compiler)
> compiler::enableJIT(3)
> compiler::compilePKGS(1)
> --8<---------------cut here---------------end--------------->8---
>
>