[R] ZOO objects: Creating, Plotting, Analyzing

[Rich Shepard]

On Thu, 20 Mar 2014, Achim Zeileis wrote:

> It's sufficient to send such messages once even if others don't reply within 
> minutes.

Achim,

   I sent it but my postfix spam filter would not let it out. There should
have been only a single copy.

> Please have a look at read.zoo() and the accompanying "read.zoo" vignette
> which does exactly what you are looking for (reading .csv files and
> turning it into a zoo series).

   Thank you, I'll do that. I missed that help file and vignette.

> Yes. The first argument should be a numeric vector or matrix and the
> second argument should be something suitable as a time index. In your case
> s95.ec is a data.frame with two "character" columns which is not suitable
> directly.  This works:
>
> s95.ec.z <- zoo(as.numeric(s95.ec[,2]), order.by = as.Date(s95.ec[,1]))
> plot(s95.ec.z)
>
> But the route via read.zoo should be more convenient, I guess.

   That clarifies my mis-understanding. I'll read about read.zoo, too.

Thank you,

Rich