[Rd] surprising behavior of match.arg() (PR#872)
Setzer.Woodrow@epamail.epa.gov
Setzer.Woodrow@epamail.epa.gov
Thu, 08 Mar 2001 14:30:33 -0500
So, in my toy example, when I add the line Fun <- Fun after the first
invocation of Fun(), Fun finds the default args when invoked a second time.
That gives me an easy work around for the real problem where I encountered
this. Thanks.
R. Woodrow Setzer, Jr. Phone:
(919) 541-0128
Experimental Toxicology Division Fax: (919) 541-5394
Pharmacokinetics Branch
NHEERL MD-74; US EPA; RTP, NC 27711
Peter Dalgaard
BSA To: Woodrow Setzer/RTP/USEPA/US@EPA
<p.dalgaard@bios cc: r-devel@stat.math.ethz.ch, R-bugs@biostat.ku.dk
tat.ku.dk> Subject: Re: [Rd] surprising behavior of match.arg() (PR#872)
Sent by:
pd@pubhealth.ku.
dk
03/08/01 01:43
PM
Setzer.Woodrow@epamail.epa.gov writes:
> If a function needs to be passed as an argument to another function,
> default arguments to the function being passed are lost. Consider this
> example:
Interesting...
Apparently, sys.function() is still a promise after the function has
been called (and the promise obviously forced).
Minimal example of same effect:
> f<-function()sys.function()
> f()
function()sys.function()
> g<-delay(f)
> g()
<promise: 0x8b248b4>
> g<-g
> g()
function()sys.function()
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk) FAX: (+45) 35327907
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