Bioequivalence and Bioavailability Forum

Dear all (and especially Yung-jin),

since a while I can’t run bear any more. First I thought the cause was my old XP-machine, but same story on Win­ 7 (64 bit). While loading gdata complains about a missing Perl-interpreter. I did/got:

library(bear)
Loading required package: reshape
Loading required package: nlme
Loading required package: gdata
gdata: Unable to locate valid perl interpreter
gdata:
gdata: read.xls() will be unable to read Excel XLS and XLSX files
gdata: unless the 'perl=' argument is used to specify the location of a
gdata: valid perl intrpreter.
gdata:
gdata: (To avoid display of this message in the future, please ensure
gdata: perl is installed and available on the executable search path.)
gdata: Unable to load perl libaries needed by read.xls()
gdata: to support 'XLX' (Excel 97-2004) files.

gdata: Unable to load perl libaries needed by read.xls()
gdata: to support 'XLSX' (Excel 2007+) files.

gdata: Run the function 'installXLSXsupport()'
gdata: to automatically download and install the perl
gdata: libaries needed to support Excel XLS and XLSX formats.

Attaching package: ‘gdata’

The following object is masked from ‘package:stats’:

    nobs

The following object is masked from ‘package:utils’:

    object.size


....................................

   bear (BE/BA for R)
   v2.6.3
   under license of GPL-2|GPL-3
                               
   Please type 'go()' to run; or
   'about.bear()' to read more.

....................................

If I ignore gdata’s warnings (don’t want to import Excel-files anyway) and type go() the splash screen appears for a few seconds, closes, and the console tells me:
Error in gzfile(file, mode) : cannot open the connection

For R-freaks:
sysname        "Windows"
release        "7 x64"
version        "build 7601, Service Pack 1"
machine        "x86-64"
platform       "x86_64-w64-mingw32"
version.string "R version 3.1.1 (2014-07-10)"

Any ideas?

---

Edit: Checked on my 32-bit Vista notebook. Same complaints from gdata(), but bear() continues to work. Strange.