r - getAnywhere("timestamp") finds two functions from within Rstudio -

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i trying call timestamp function in rstudio seem calling version other 1 want. getanywhere shows there 2 definitions:

> getanywhere(timestamp) 2 differing objects matching ‘timestamp’ found in following places   package:utils   namespace:utils use [] view 1 of them  > timestamp function(...) .rs.callas(name,                                                          hook,                                                          original,                                                          ...) <environment: 0x0000000005f42030>  > timestamp() ##------ thu mar 06 15:08:51 2014 ------##  > utils::timestamp function (stamp = date(), prefix = "##------ ", suffix = " ------##",     quiet = false) {     stamp <- paste0(prefix, stamp, suffix)     .external2(c_addhistory, stamp)     if (!quiet)         cat(stamp, sep = "\n")     invisible(stamp) } <bytecode: 0x0000000005f447a8> <environment: namespace:utils>

calling utils::timestamp() crashes rstudio. if call timestamp, seems ignore parameters, though.

> timestamp(prefix = "##-ddg-- ", quiet=true)

this not change prefix associated timestamp, , returns output console, should not when quiet true.

this running r 3.0.1, rstudio 0.97.551, windows 7 enterprise service pack 1.

on mac, getanywhere gives different result , timestamp function works correctly.

> getanywhere(timestamp) single object matching ‘timestamp’ found found in following places   package:utils   namespace:utils value  function (stamp = date(), prefix = "##------ ", suffix = " ------##",      quiet = false)  {     stamp <- paste0(prefix, stamp, suffix)     .external2(c_addhistory, stamp)     if (!quiet)          cat(stamp, sep = "\n")     invisible(stamp) } <bytecode: 0x7fd90b10bdb8> <environment: namespace:utils>

where second definition coming on windows? how r call right version?

thanks help.

barbara

in comments jonathan answers where second definition coming on windows? , crashing parts of question with

on windows rstudio replaces timestamp own method because default method has dependencies aren't met in rstudio environment (which causes crash see when invoke directly). method replacement timestamp, however, not wrapper, , replacement doesn't support parameters of original. i'd encourage report problem on rstudio support forum.

which have confirmed on rstudio support page. reported on earlier rstudio support thread.

unfortunately, rstudio's bug database looks internal need monitor following commit history or release notes latest version or preview release.


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