Hello R-listers,
I'm having trouble accessing "sub" objects ("attributes"?), e.g.,
"x$silinfo$avg.width" using the /get() /command; I'm using/ get()/ in a
loop as illustrated in the following code:
#FIRST MAKE CLUSTERS of VARYING k
/for (i in 1:300){
assign(paste("x.",i,sep=""),pam(x,i)) #WORKS FINE
}/
#NEXT, TAKE LOOK AT AVE. SILHOUETTE VALUE FOR EACH k
#PART 1, MAKE LIST OF OBJECTS NEEDED
/gen.list <- rep("t",300)
for (i in 1:300){
assign(gen.list[i],paste("x.",i,"$silinfo$avg.width",sep=""))
}
#WORKS FINE
/#PART 2, USE LIST IN LOOP TO ACCESS OBJECT.
/si//l.collector <- rep(99,300)
for(i in 1:300){
sil.collector <- get(gen.list[i])
}/
#HERE IS THE ERROR
/Error in get(x, envir, mode, inherits) : variable
"x.1$silinfo$avg.width" was not found
/So, I get the gist of this error; x.1 is an object findable from get(),
but the "attribute" levels are not accessible. Any suggestions on how
to get get() to access these levels? From reading the get()'s help
page, I don't think it will access the attributes. (my apologies for
loosely using the term attributes, but I hope it is clear).
Thanks,
Mark Orr
--
***********************************************
Mark G. Orr, PhD
Heilbrunn Dept. of Population and Family Health
Columbia University
60 Haven Ave., B-2
New York, NY 10032
Tele: 212-304-7823
Fax: 212-305-7024
www.columbia.edu/~mo2259
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