On 09.04.2012 07:16, arunkumar wrote:
HI
I want to create a dummy variable for a dataset which has various dates Eg
I've one year data. The user can choose any date range
startdate : 2012-01-01
enddate: 2012-02-01
dummy <- date >= startdate & date <= enddate
Uwe Ligges
startdate: 2012-06-01
enddate=2012-07-01
the columns of dataset= X ,Y ,date
Thanks and re
-
Thanks in Advance
Arun
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