Displaying 2 results from an estimated 2 matches for "rollet".
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rolled
2011 Aug 24
3
Creating new variable with maximum visit date by group_id
Dear R users,
I am encoutering the following problem: I have a dataset with a 'unique_id' and different 'visit_date' (formatted as.Date, "%d/%m/%Y") per unique_id. I would like to create a new variable with the most recent date of visit per unique_id as shown below.
unique_id visit_date last_visit_date
1 01/06/2010 01/06/2011
1 01/01/2011 01/06/2011
1
2008 Nov 03
4
wine reboots computer
hi, i am runing latest wine in a FC9 x64 machine and when i run anytihng in wine computer just reboots...I already tested ram with memtest and its fine, no gpu or cpu high temps.
Wonder if its some problem between wine and the nvidia driver under x64, or some hardware problem.