create an object list in a loop
Peter Dalgaard BSA <p.dalgaard at biostat.ku.dk> writes:
Jake Bowers <jbowers at csm.berkeley.edu> writes:
Hi.
How about:
n<-10
aval<-list()
for(i in 1:n){
aval[[i]]<-matrix(....)
}
Then you could access the first matrix as aval[[1]]
or, aval <- lapply(1:n, function(i) matrix(.....))
Sorry, forgot to say that the construct
aval<-list()
for(i in 1:n) aval[[i]]<-.....
is distictly bad since it requires a reallocation of the list every
time you add to it. If you have to do it that way, use
aval <- vector("list", n)
to create aval with the correct length from the outset. (Of course
this is just another good reason to prefer lapply() ... .)
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 _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._