[R] zoo column names

[Achim Zeileis]

On Sat, 8 Jan 2011, Pete B wrote:

>
> Hi All
>
> I am trying to find a way to prevent column names from changing on zoo
> objects when I merge them.
>
> I have column names that contain a "-" that after merging have become "."
>
> # Example
> zz1 = zoo(as.matrix(1:5))
> zz2 = zoo(as.matrix(10:12))
>
> names(zz1)=c("aa-1")
> names(zz2)=c("bb-1")
>
> zz3=merge(zz1,zz2)

merge(zz1, zz2, check.names = FALSE)

should do what you want.

(This is also the default in the devel version on R-Forge.)

hth,
Z

> print(zz3)
>
> Obviously, I could do something like
>
> names(zz3) = c(names(zz1),names(zz2))
>
> but I have a large number of zoo objects that I am merging. Creating the
> simple line above is not that easy.
>
> Any thoughts would be gratefully received.
>
> Kind regards
>
> Pete
>
>
>
>
> -- 
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>
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