This will work with xts in case that is an option (always is, since zoo and
xts share the same basic structure)
library(xts)
x <- xts(rnorm(60), as.Date("2011-01-01")+0:59)[-2]
x[as.Date(c("2011-01-01", "2011-01-02", "2011-01-03"))] <- NA
head(x)
[,1]
2011-01-01 NA
2011-01-03 NA
2011-01-04 0.1433278
2011-01-05 -0.3239116
2011-01-06 0.5226191
2011-01-07 -1.1774623
Slightly different semantics, but this will do what you want assuming the
dates you are selecting are a range:
x <- xts(rnorm(60), as.Date("2011-01-01")+0:59)[-2]
x['2011-01-01/2011-01-03'] <- NA
head(x)
[,1]
2011-01-01 NA
2011-01-03 NA
2011-01-04 1.2909828095
2011-01-05 -0.0000222576
2011-01-06 0.4758526846
2011-01-07 -1.1725908376
Best,
Jeff
On Fri, Mar 4, 2011 at 5:10 AM, Bogaso <[email protected]> wrote:
> Hi all, I having some problem in replacing some observation of a zoo object
> with NA. Here I have tries followings:
>
> > MyData <- zooreg(rnorm(60), start=as.Date("2011-01-01"))[-2]
> > MyData[as.Date(c("2011-01-01", "2011-01-02", "2011-01-03"))] <- NA ## I
> > like to replace values with those indices with 'NA'
> > MyData
> Error in dimnames(x) <- dn :
> length of 'dimnames' [1] not equal to array extent
>
> Can somebody point me on the correct approach?
>
> Thanks,
>
> --
> View this message in context:
> http://r.789695.n4.nabble.com/Replacing-some-observation-of-a-zoo-object-tp3335062p3335062.html
> Sent from the Rmetrics mailing list archive at Nabble.com.
>
> _______________________________________________
> [email protected] mailing list
> https://stat.ethz.ch/mailman/listinfo/r-sig-finance
> -- Subscriber-posting only. If you want to post, subscribe first.
> -- Also note that this is not the r-help list where general R questions
> should go.
>
--
Jeffrey Ryan
[email protected]
www.lemnica.com
[[alternative HTML version deleted]]
_______________________________________________
[email protected] mailing list
https://stat.ethz.ch/mailman/listinfo/r-sig-finance
-- Subscriber-posting only. If you want to post, subscribe first.
-- Also note that this is not the r-help list where general R questions should
go.
