R-alpha: ?bug in [.data.frame
Thomas Lumley
Thomas Lumley <thomas@biostat.washington.edu>
Sun, 31 Aug 1997 12:34:59 -0700 (PDT)
If you subscript a data frame using the names of the columns and there is
more than one column with the same name only the first one is found.
eg
mm<-data.frame(1:10,log(1:10))
names(mm)<-c("(offset)","(offset)")
mm[,"(offset)"] # only returns first column
mm[,"(offset)"]<-rep(1,10) # only sets first column
This *is* compatible with S, but I still think it's the wrong thing to do.
Thomas Lumley
------------------------------------------------------+------
Biostatistics : "Never attribute to malice what :
Uni of Washington : can be adequately explained by :
Box 357232 : incompetence" - Hanlon's Razor :
Seattle WA 98195-7232 : :
------------------------------------------------------------
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
r-devel 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-devel-request@stat.math.ethz.ch
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-