[R] How to get the date of specific value within a zoo object?

[Richard Ma]

Hi all,

I have a zoo time series object, see below code:
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# This is a pasteable example
library(zoo)

x <- c(1, 2, 3, 4, 5)
dt <- c("2011-01-01", "2011-01-02", "2011-01-03", "2011-01-04", "201-01-05")
ts <- zoo(x, ts)

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Now, I want to know the date when 'ts' equal to a specific value. In this
example, suppose I want to know when the ts = 3? The program should return
"2011-01-03".

Is there a function to do this job conveniently?

Regards,
Richard

-----
Richard Ma
PhD student, Ecology & Remote Sensing
Climate Change Cluster, Department of Environment Science
University of Technology, Sydney
http://everydropr.wordpress.com
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