Displaying 2 results from an estimated 2 matches for "newday".
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newdat
2010 Feb 06
1
duplicating records
Dear friends,
I need to fill in (duplicate the whole record) the missing days with the
same record values as long as AE is the same value (i.e. "1"), once AE
value changes, the process of duplication should proceed with the new AE
value till it changes again. e.g. I need to fill in records: day 18-day
44, all the records are carried with the new AE value of "0".
At the
2007 Dec 14
3
calculating the number of days from dates
Hello,
I gather variants of this question have been asked previously. I have
done some reading but only became more confused, as I suspect what I
am trying to do is more basic than other applications.
The following code readily calculates the difference in days between two dates:
newdays <- ISOdate(2005, 5,12) - ISOdate(2006, 12, 22)
However, I wanted to be able to deduct the dates in one variable from
the dates in another variable, resulting in a new variable - e.g the
difference in days between the two dates. Below is a sample of my
data. My questions:
1. I tried changin...