See FAQ #1 of the zoo faq:
vignette("zoo-faq")
On Fri, Jan 29, 2010 at 7:12 AM, e-letter <inp...@gmail.com> wrote:
> Readers,
>
> I am trying to use the zoo package with an array of data:
>
> file1:
> hh:mm:ss 1
> hh:mm:ss 2
> hh:mm:ss 3
> hh:mm:ss 4
>
> file2:
> hh:mm:ss 11 55
> hh:mm:ss 22 66
> hh:mm:ss 33 77
> hh:mm:ss 44 88
>
> I wanted to merge these data set so I tried the following commands:
>
> library(chron)
> library(zoo)
> z1<-read.zoo("path/to/file1.csv",header=TRUE,sep=",",FUN=times)
> z2<-read.zoo("path/to/file2.csv",header=TRUE,sep=",",FUN=times)
> z3<-(na.approx(merge(z1,z2),time(z1)))
> plot(z3$z1,z3$z2[3])
>
> Warning message:
> some methods for “zoo” objects do not work if the index entries in
> ‘order.by’ are not unique in: zoo(rval, ix)
>> z3<-(na.approx(merge(z1,z2),time(z1)))
> Error in merge.zoo(z1, z2) : series cannot be merged with non-unique
> index entries in a series
>
> I have read the document vignette 'zoo' but section 2.1 does not show
> an example of the syntax for the command 'order.by'.
>
> How to use the zoo package where the variable z2 contains many columns of
> data?
>
> Yours,
>
> rhelpatconference.jabber.org
> r251
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
