[R] R - Populate Another Variable Based on Multiple Conditions | For a Large Dataset
Kevin Wamae
KWamae at kemri-wellcome.org
Sun Jul 3 21:13:38 CEST 2016
Thanks Jeff, let me try it on the larger dataset.
Regards
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Kevin Wame
On 7/3/16, 10:09 PM, "Jeff Newmiller" <jdnewmil at dcn.davis.ca.us> wrote:
result <- ( result0
%>% select( -admin_period1 )
%>% inner_join( result0 %>% select( ID, admin_period1, end=start )
, by = c( ID="ID", admin_period ="admin_period1" )
)
%>% mutate( ddays = end - start )
)
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