[R] S4 class questions

From: Li, Xuejun <XueLi_at_coh.org>
Date: Thu, 10 Jul 2008 08:45:16 -0700

 

Hi, I'd like to create a S4 class contains only one type of data. However, the number of slots varies.  

For example, I want to create a class "a", each slots in "a" contains numeric value only.  

> setClass("a", contains = "numeric")
 

If I want to create an object "a" with only one slot containing c(3,4), I will write  

> new("a", c(3,4))
 

What if I want to create another object "a" with three slots with c(3,4) in the 1st slot, c(1,2) in the second, and c(0, 5) in the third?        

Arthur Xuejun Li

Division of Information Science

1500 East Duarte Road

Duarte, CA 91010 - 3000

Ph: (626) 256-4673 ext. 65121

Fax: (626) 471-7106  


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