sigalit mangut-leiba wrote:
hello,
I have a longitudinal data:
idn mort30 newinfec
1 0 1
1 0 1
1 0 1
1 0 1
2 1 1
2 1 1
2 1 1
3 0 0
3 0 0
3 0 0
3 0 0
3 0 0
and i want to filter out those obs. that has mort30==1 (mort30 is constant
over idn).
how can i use if...else and filter out those unwanted obs.?
I appriciate the help,
sigalit.
subset(data, mort30 != 1)
Uwe Ligges
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