style question: returning multiple arguments - structure orlist
Thomas Lumley <tlumley at u.washington.edu> writes:
I think you'll find that the first argument of an assignment function has to exist already -- the function is passed the evaluated first argument. This means it isn't quite true that a<-"foo<-"(a,value) is the same as foo(a)<-value eg
"foo<-"<-function(x,value){list(substitute(x),value)}
foo(a)<-4
Error: Object "a" not found
"foo<-"(a,1)
[[1]] a [[2]] [1] 1
a<-1 foo(a)<-4 a
[[1]] *tmp* [[2]] [1] 4 If this is correct, then you can't really write "list<-"
Dang! You're right...
O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._