> However, on a more fundamental "programming philosophy" note, the fact > that R does not allow multiple references to one object is a limitation. > One of the fundamental principles of good programming is that there > should be a one-to-one correspondence between instances in the program > and objects in the "real world" (problem domain etc.), and having no > references makes achieving this difficult (and quite impossible for > more complex systems).
This is a principle of object oriented programming, not good programming in general! Hadley -- http://had.co.nz/ ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
