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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