Hi all,
I bumped into this awkward zoo behaviour. I'd be half tempted to call it a bug,
what do you think? It's annoying to work around it :( I wonder if this was the
behaviour of older zoo versions, I can't remember coming across this sort of
thing...
> version
_
platform i386-pc-solaris2.10
arch i386
os solaris2.10
system i386, solaris2.10
status
major 2
minor 10.1
year 2009
month 12
day 14
svn rev 50720
language R
version.string R version 2.10.1 (2009-12-14)
> packageDescription("zoo")
Package: zoo
Version: 1.6-2
Date: 2009-11-23
>t1 = zoo(-100, as.POSIXct("2009-12-31")+(2:10)*60*60*24)
>t2 = zoo(matrix(0), index(t1)[1]-1)
>colnames(t1)="test"
>colnames(t2) = colnames(t1)
> t1
2010-01-02 2010-01-03 2010-01-04 2010-01-05 2010-01-06 2010-01-07 2010-01-08
-100 -100 -100 -100 -100 -100 -100
2010-01-09 2010-01-10
-100 -100
> t2
2010-01-01 23:59:59 0
>rbind(t1,t2)
2010-01-01 23:59:59 0
2010-01-02 00:00:00 -100
2010-01-03 00:00:00 0
2010-01-04 00:00:00 -100
2010-01-05 00:00:00 0
2010-01-06 00:00:00 -100
2010-01-07 00:00:00 0
2010-01-08 00:00:00 -100
2010-01-09 00:00:00 0
2010-01-10 00:00:00 -100
Warning message:
In rbind(c(-100, -100, -100, -100, -100, -100, -100, -100, -100), :
number of columns of result is not a multiple of vector length (arg 1)
>rbind(as.xts(t1),as.xts(t2))
[,1]
2010-01-01 23:59:59 0
2010-01-02 00:00:00 -100
2010-01-03 00:00:00 -100
2010-01-04 00:00:00 -100
2010-01-05 00:00:00 -100
2010-01-06 00:00:00 -100
2010-01-07 00:00:00 -100
2010-01-08 00:00:00 -100
2010-01-09 00:00:00 -100
2010-01-10 00:00:00 -100
And also:
> t1 = zoo(matrix(-100,ncol=1), as.POSIXct("2009-12-31")+(2:10)*60*60*24)
> rbind(t1,t2)
2010-01-01 23:59:59 0
2010-01-02 00:00:00 -100
2010-01-03 00:00:00 -100
2010-01-04 00:00:00 -100
2010-01-05 00:00:00 -100
2010-01-06 00:00:00 -100
2010-01-07 00:00:00 -100
2010-01-08 00:00:00 -100
2010-01-09 00:00:00 -100
2010-01-10 00:00:00 -100
Cheers,
//Giuseppe
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