[R] the value of the last expression

[Sam Steingold]

> * arun <fznegcvax111 at lnubb.pbz> [2012-12-10 11:22:03 -0800]:
>
> It is working for me.

I do not claim to have found a bug.
I am merely pleading for help figuring out what could have gone wrong.
.Last.value word when I first start R under Emacs/ESS.
Then it stops working.
I can't figure out when or why...

--8<---------------cut here---------------start------------->8---
> sessionInfo()
R version 2.15.2 (2012-10-26)
Platform: x86_64-pc-linux-gnu (64-bit)

locale:
[1] C

attached base packages:
[1] stats     graphics  grDevices utils     datasets  compiler  methods  
[8] base     

loaded via a namespace (and not attached):
[1] tools_2.15.2
--8<---------------cut here---------------end--------------->8---


> sessionInfo()
> R version 2.15.0 (2012-03-30)
> Platform: x86_64-pc-linux-gnu (64-bit)
>
> locale:
>  [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C              
>  [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8    
>  [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8   
>  [7] LC_PAPER=C                 LC_NAME=C                 
>  [9] LC_ADDRESS=C               LC_TELEPHONE=C            
> [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C       
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base     
>
> other attached packages:
> [1] matrixStats_0.6.2 stringr_0.6       reshape_0.8.4     plyr_1.7.1       
>
> loaded via a namespace (and not attached):
> [1] R.methodsS3_1.4.2 tools_2.15.0    
> A.K.
>
>
>
>
> ----- Original Message -----
> From: Sam Steingold <sds at gnu.org>
> To: r-help at r-project.org; Richard M. Heiberger <rmh at temple.edu>
> Cc: 
> Sent: Monday, December 10, 2012 2:13 PM
> Subject: Re: [R] the value of the last expression
>
>> * 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
>> 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
>
> could my .Rprofile be at fault?
> ## 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)
>
>
>> On Thu, Feb 9, 2012 at 9:44 PM, Sam Steingold <sds at gnu.org> wrote:
>>
>>> Is there an analogue of common lisp "*" variable which contains the
>>> value of the last expression?
>>> E.g., in lisp:
>>> > (+ 1 2)
>>> 3
>>> > *
>>> 3
>>>
>>> I wish I could recover the value of the last expression without
>>> re-evaluating it.

-- 
Sam Steingold (http://sds.podval.org/) on Ubuntu 12.04 (precise) X 11.0.11103000
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If it has syntax, it isn't user friendly.