Warning message when items of Hmisc are masked by loading a package.

I know the masking message is standard behaviour. It is the warning mesage

Warning message:
In identical(get(., i), get(., lib.pos)) : ignoring non-pairlist attributes

that puzzles me. And that's something I noticed only in 2.12.1

Cheers
Joris


On Tue, Dec 21, 2010 at 4:59 PM, David Winsemius <dwinsemius at comcast.net> wrote:

I thought that was standard behavior? It's been happening when I load Hmisc
since the dawn of time (or 3 years anyway.... back to R 2.8.0 at least.)
 Hmisc masks some function(s) in survival.

#----------
Attaching package: 'Hmisc'

The following object(s) are masked from 'package:survival':

   untangle.specials

The following object(s) are masked from 'package:base':

   format.pval, round.POSIXt, trunc.POSIXt, units


Attaching package: 'rms'

The following object(s) are masked from 'package:survival':

   Surv
#---------------

It only seems fair that if you later mask functions in Hmisc that you also
get a warning:


#----------------

library (reshape)

Loading required package: plyr

Attaching package: 'plyr'

The following object(s) are masked from 'package:Hmisc':

   is.discrete, summarize


Attaching package: 'reshape'

The following object(s) are masked from 'package:plyr':

   round_any

#-----------------

--
David.



On Dec 21, 2010, at 8:51 AM, Joris Meys wrote:

PS : This did not happen in R 2.12.0, it just occured when I installed
the new R version today.
Cheers
Joris

On Tue, Dec 21, 2010 at 2:50 PM, Joris Meys <jorismeys at gmail.com> wrote:

I've noticed that I get a warning message every time a package masks
some functions from Hmisc. The warning message says :

Warning message:
In identical(get(., i), get(., lib.pos)) : ignoring non-pairlist
attributes

This happens with eg:
library(plyr)
library(xtable)

I think I've seen this passing by before, but I'm not sure any more.
Just thought I'd mention it.
Cheers
Joris

R.Version()

$platform
[1] "i386-pc-mingw32"

$arch
[1] "i386"

$os
[1] "mingw32"

$system
[1] "i386, mingw32"

$status
[1] ""

$major
[1] "2"

$minor
[1] "12.1"

$year
[1] "2010"

$month
[1] "12"

$day
[1] "16"

$`svn rev`
[1] "53855"

$language
[1] "R"

$version.string
[1] "R version 2.12.1 (2010-12-16)"

Sys.info()

   sysname      release      version     nodename      machine
 login         user
 "Windows"      "7 x64" "build 7600"  "JFMEYS-PC"        "x86"
"Joris"      "Joris"

--
Joris Meys
Statistical consultant

David Winsemius, MD
West Hartford, CT

-- 
Joris Meys
Statistical consultant

Ghent University
Faculty of Bioscience Engineering
Department of Applied mathematics, biometrics and process control

tel : +32 9 264 59 87
Joris.Meys at Ugent.be
-------------------------------
Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php