[R] is.finite() of a list

[stephen wisdom]

> ?is.finite

     `is.finite' and `is.infinite' return a vector of the same length
     as `x', indicating which elements are finite or not.

is.finite() of a list seems to return a vector of the length of the list, but with value FALSE if any list element isn't finite.  Is this intended?

> l4 <- list(NA,1,2,3); l4; length(l4); is.finite(l4)
[[1]]
[1] NA

[[2]]
[1] 1

[[3]]
[1] 2

[[4]]
[1] 3

[1] 4
[1] FALSE FALSE FALSE FALSE

> version
         _              
platform i386-pc-mingw32
arch     i386           
os       mingw32        
system   i386, mingw32  
status                  
major    1              
minor    6.2            
year     2003           
month    01             
day      10             
language R              

> system('winver') 
[Windows XP Professional]

Thanks,
Steve Wisdom
Westport CT USA 







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