Thanks. Should be fixed in r-devel and 2.15 alpha from revision 58756.
(Nothing to do with trace() particularly. Low-level code to create
"signature" objects was not returning an S4 object.)
On 3/14/12 9:48 PM, Martin Morgan wrote:
With
> R.version.string
[1] "R version 2.15.0 alpha (201
With
> R.version.string
[1] "R version 2.15.0 alpha (2012-03-14 r58748)"
trying to trace a method using the 'signature' argument fails rather
than enabling the trace:
> trace(initialize, signature="ANY")
Error in matchSignature(signature, fdef, where) :
trying to match a method signature of
