Dear R forum

I have a data.frame

df = data.frame(dates = c("4/15/2013", "4/14/2013", "4/13/2013", "4/12/2013"), values = c(47, 38, 56, 92))

I need to to create a vector by repeating the dates as 

"Current_date", 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013,  "Current_date", 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013, Current_date, 4/15/2013, 4/14/2013, 4/13/2013, 4/12/2013

i.e. I need to create a new vector as given below which I need to use for some other purpose.

Current_date
4/15/2013
4/14/2013
4/13/2013
4/12/2013
Current_date
4/15/2013
4/14/2013
4/13/2013
4/12/2013
Current_date
4/15/2013
4/14/2013
4/13/2013
4/12/2013

Is it possible to construct such a
 column?

Regards

Katherine



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