Hello Everyone!
I am trying to extend the class "call", but keep getting errors
whatever I do:
setClass("mycall", contains = "call")
#[1] "mycall"
new("mycall")
#Error in function (object) :
# error in evaluating the argument 'object' in selecting a method for
function
#'show'
new("mycall", quote(a+b))
#Error in .getClassFromCache(Class, where) :
# could not find function "<undef>"
I understand this is rarely needed, but for some special reasons I really need
the class "call" (as usually returned by quote and substitute) and not
class
"expression".
Would really appreciate any workarounds.
Thanks,
Vitalie.
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status Patched
major 2
minor 12.0
year 2010
month 11
day 01
svn rev 53513
language R
version.string R version 2.12.0 Patched (2010-11-01 r53513)