[R] difftime / RBloomberg

[Judith Schiller]

The error is "evaluation nested too deeply: infinite recursion / 
options(expressions=)?", and sessionInfo() results in

R version 2.4.1 (2006-12-18)
i386-pc-mingw32

locale:
LC_COLLATE=German_Austria.1252;LC_CTYPE=German_Austria.1252;LC_MONETARY=German_Austria.1252;LC_NUMERIC=C;LC_TIME=German_Austria.1252

attached base packages:
[1] "splines"   "stats"     "graphics"  "grDevices" "datasets"  
"tcltk"     "utils"     "methods"   "base"    

other attached packages:
      RODBC  RBloomberg       chron         zoo RDCOMClient        
MASS      xtable    survival    svSocket        svIO      R2HTML      
svMisc
    "1.1-7"    "0.1-10"     "2.3-8"     "1.2-1"    "0.91-0"    
"7.2-30"     "1.4-2"      "2.30"     "0.9-5"     "0.9-5"      "1.58"     
"0.9-5"
      svIDE
    "0.9-5"

The workaround is a nice idea, but as the problem arisis in 
"as.COMDate.chron", other users of this function might be affected as well.

Prof Brian Ripley schrieb:
> On Thu, 22 Mar 2007, Schiller Judith 1541 EB wrote:
>
>   
>> hi,
>>
>> I've troubles with some difftime objects. e.g.
>>
>> ISOdate(2001, 4, 26) - ISOdate(2001, 2, 26) - 2
>>
>> works, telling me "Time difference of 57 days". But when I'd like to add
>> days, such as
>>
>> ISOdate(2001, 4, 26) - ISOdate(2001, 2, 26) + 2
>>
>> the function gives me an error.
>>     
>
> The error being?  (It does not give me an error.)
>
>   
>>  Function "as.COMDate.chron" of the
>> Rbloomberg package doesn't work for that reason.
>> I'm running R on a Windows machine, R version 2.4.1.
>>     
>
> I cross-checked on that system.
>
> It is quite possible the error is due to some other package that you are 
> using: that's why we ask for the result of sessionInfo().
>
> I would expect
>
> (ISOdate(2001, 4, 26) - ISOdate(2001, 2, 26)) - (-2)
>
> to be a workaround, BTW.
>
>