can I 'attach' a zoo object?
Mat,
zoo/xts are not data frames. For zoo/xts, the underlying storage object is a
matrix, so you can certainly access columns using the $ operator, but unlike a
data frame, it is not actually stored internally as separate objects per column.
For big time series data in zoo/xts, take a look at the 'indexing' package if
you are really likely to access primarily by columns.
Regards,
- Brian
On 05/25/2010 08:11 AM, Matthieu Stigler wrote:
Hi
When importing a big data frame, I like to "attach" its variables so
they are direclty available. I don't see how to do this with zoo... Does
anyone has an idea how I could do that?
Take a zoo object:
library(zoo)
zooframe<-matrix(runif(3*26), nrow=3, dimnames=list(letters[1:3],
paste("var", letters, sep="")))
zoo1 <-zoo(zooframe, order.by=as.Date("2003-02-01") + c(1,
3, 7))
Can I 'attach' it, so its variables become accessible to user workspace?
attach(zoo1)
#does not work...
Thanks!
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