Loading namespaces
BBK schrieb:
Just noticed the mssing ) at the end of the setClass statement, it is there
in the orginal
Phineas
-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch]On Behalf Of BBK
Sent: Thursday, December 08, 2005 8:18 PM
To: 'R-Help
Subject: [R] Loading namespaces
I'm creating a package for my own use that uses some S4 classes but no
methods.
I have a file called NAMESPACE it contains the line:
exportClasses("foo")
and at the top of the R file I have
setClass("foo", representation(x="numeric")
and the line:
.onLoad<-function(libname,pkgname)
Do you mean .onLoad <- function(lib, pkg) require(methods) as given in Section 1.6.6 of "Writing R Extensions"
When I run R CMD check I get Syntax error in the only R file. If I comment out the .onLoad function I get a package/namespace load failed error. Are libname and pkgname parameters for the function .onLoad that need to explicitly stated, or does R populate them when the package is loaded? Does .onLoad as defined above do enough to ensure that the namesapce is loaded?
see Section 1.6.6 (ibid.): "There needs to be an .onLoad action to ensure that the methods package is loaded and attached" hth Matthias
Phineas Campbell
version
_
platform sparc-sun-solaris2.9
arch sparc
os solaris2.9
system sparc, solaris2.9
status
major 2
minor 1.0
year 2005
month 04
day 18
language R
_
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StaMatS - Statistik + Mathematik Service Dipl.Math.(Univ.) Matthias Kohl www.stamats.de