Dear all,
While buildign a package (R 2.15.2 on windows XP) I had three
warnings/notes -- I would be grateful for any hints on what to do.
1. The first one is probably not really important if I'm not missing
something:
cygwin warning:
MS-DOS style path detected: C:/x/y/z/package_1.0.tar.gz
Preferred POSIX equivalent is: /cygdrive/c/x/y/z/package_1.0.tar.gz
CYGWIN environment variable option "nodosfilewarning" turns off this
warning.
Would I just disregard it or set the cygwin environment variable, or is it
something important?
2. "No visible binding": there was a NOTE saying -
bells: no visible binding for global variable 'whistles'
The thing is that I used this in subset'ing a data frame that is supposed
to contain a variable called 'whistles': something like
subset(x, whistles > 100)
Should one avoid using `subset` in a package?
3. I used .C("bincount", PACKAGE="base") to count some frequencies in a
long vector. This was considerably quicker than with `table` but gives a
warning when building a package.
"Foreign function call with 'PACKAGE' argument in a base package:
.C("bincount", ..., PACKAGE = "base")
Packages should not make .C/.Call/.Fortran calls to base packages. They
are not part of the API, for use only by R itself and subject to change
without notice."
I understand the reasons but what would be a good solution if I like the
way it works now?
Many thanks in advance,
Kenn
Kenn Konstabel
research fellow
Department of Chonic Diseases
National Institute for Health Development
Hiiu 42
Tallinn, Estonia
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