Hi
are you sure that you understand what union does?
AFAIK union(set_name ,element) takes vector set_name, add all non duplicated
values from element and returns concatenated vector.
x<-1:10
y<-5:15
union(x,y)
[1] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
x<-NULL
union(x,y)
[1] 5 6 7 8 9 10 11 12 13 14 15
x<-NA
union(x,y)
[1] NA 5 6 7 8 9 10 11 12 13 14 15
so for each option I can think about based on your description union works as
expected.
You need to be more specific to explain what you really do and send us a working
example. Read posting guide to see how.
Cheers
Petr
> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Ragia
> Ibrahim
> Sent: Monday, January 19, 2015 3:52 PM
> To: r-help at r-project.org
> Subject: [R] union empty set with an element
>
> Hello,
> I started the program with an empty set then I add and element when
> needed.
> the problem how can I add the first element to the empty set
> union(set_name ,element)
> gives "subscript out of bounds "
>
> thanks in advance
> R.
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
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> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contained, reproducible code.
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