Time series merge?

Seems to work fine. Thank you.

-----Original Message-----
From: Gabor Grothendieck [mailto:ggrothendieck at gmail.com] 
Sent: Saturday, November 26, 2011 10:11 AM
To: Kevin Burton
Cc: r-help at r-project.org
Subject: Re: [R] Time series merge?

On Sat, Nov 26, 2011 at 10:55 AM, Kevin Burton <rkevinburton at charter.net>
wrote:

I have two time series



a <- ts(1:10, start=c(1,6), end=c(2,5), frequency=10)

b <- ts(1:5, start=c(2,1), end=c(2,5), frequency=10)



Obviously 'b' is a subset of 'a'. I want a single index value 
indicating where that start of 'b' lines up with the start of 'a'. So 
in this simple example I would expect an index of 5. I was playing 
with 'merge'. But, for a 'ts' object this does not produce anything that

is useful:

merge(a,b)

Try this:

library(zoo)
m <- merge(a = as.zoo(a), b = as.zoo(b)) m

or to get a ts object back:

as.ts(m)

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